diff --git a/src/client/src/tscSub.c b/src/client/src/tscSub.c
index 42330aa18e48eb60389ef3056c96a2aab386a6ca..43a8884e57f85dba5bae3263630b38e8c3dcb43a 100644
--- a/src/client/src/tscSub.c
+++ b/src/client/src/tscSub.c
@@ -265,7 +265,7 @@ static int tscUpdateSubscription(STscObj* pObj, SSub* pSub) {
 
   SSqlCmd* pCmd = &pSql->cmd;
 
-  pSub->lastSyncTime = taosGetTimestampMs();
+  TSDB_QUERY_CLEAR_TYPE(tscGetQueryInfoDetail(pCmd, 0)->type, TSDB_QUERY_TYPE_MULTITABLE_QUERY);
 
   STableMetaInfo *pTableMetaInfo = tscGetTableMetaInfoFromCmd(pCmd,  0);
   if (UTIL_TABLE_IS_NORMAL_TABLE(pTableMetaInfo)) {
@@ -276,6 +276,8 @@ static int tscUpdateSubscription(STscObj* pObj, SSub* pSub) {
       taosArrayClear(pSub->progress);
       taosArrayPush(pSub->progress, &target);
     }
+    
+    pSub->lastSyncTime = taosGetTimestampMs();
     return 1;
   }
 
@@ -305,7 +307,11 @@ static int tscUpdateSubscription(STscObj* pObj, SSub* pSub) {
   }
   taosArrayDestroy(tables);
 
-  TSDB_QUERY_SET_TYPE(tscGetQueryInfo(pCmd)->type, TSDB_QUERY_TYPE_MULTITABLE_QUERY);
+  if (pTableMetaInfo->pVgroupTables && taosArrayGetSize(pTableMetaInfo->pVgroupTables) > 0) {
+    TSDB_QUERY_SET_TYPE(tscGetQueryInfo(pCmd)->type, TSDB_QUERY_TYPE_MULTITABLE_QUERY);
+  }
+
+  pSub->lastSyncTime = taosGetTimestampMs();
   return 1;
 }
 
diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index cd86f13d4b4263a9ef321d32cef1a5b6531803f0..972c3c4e10c163c4c5b66d3390200b97f207e0a0 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -3572,6 +3572,9 @@ int32_t tsdbGetTableGroupFromIdList(STsdbRepo* tsdb, SArray* pTableIdList, STabl
     if (pTable->type == TSDB_SUPER_TABLE) {
       tsdbError("direct query on super tale is not allowed, table uid:%"PRIu64", tid:%d", id->uid, id->tid);
       terrno = TSDB_CODE_QRY_INVALID_MSG;
+      tsdbUnlockRepoMeta(tsdb);
+      taosArrayDestroy(group);
+      return terrno;
     }
 
     tsdbRefTable(pTable);
diff --git a/src/util/src/ttokenizer.c b/src/util/src/ttokenizer.c
index 3ab2aca67fac36dff1280d6fa35849f3222fb203..62389f191fe5d48933f040d4dca136204a1b9f51 100644
--- a/src/util/src/ttokenizer.c
+++ b/src/util/src/ttokenizer.c
@@ -265,6 +265,10 @@ static int32_t tKeywordCode(const char* z, int n) {
     }
   }
 
+  if (keywordHashTable == NULL) {
+    return TK_ILLEGAL;
+  }
+  
   SKeyword** pKey = (SKeyword**)taosHashGet(keywordHashTable, key, n);
   return (pKey != NULL)? (*pKey)->type:TK_ID;
 }
diff --git a/tests/pytest/tag_lite/3.py b/tests/pytest/tag_lite/3.py
index 373db1c70fcc67eec7f4abae4e6264cad7fddf64..bbdf0868fae6d465525dbe7191172b4145b53f80 100644
--- a/tests/pytest/tag_lite/3.py
+++ b/tests/pytest/tag_lite/3.py
@@ -60,14 +60,14 @@ class TDTestCase:
 
             x = 0
             while (x < rowNum):
-                ms = "%dm" % x
-        # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
+        # TSIM: sql insert into $tb values (1605045600000 + $ms , $x )
                 tdLog.info(
-                    "insert into %s values (now + %s, %d)" %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    "insert into %s values (now + %s, %d)" %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 x = x + 1
         # TSIM: endw
             i = i + 1
@@ -81,13 +81,13 @@ class TDTestCase:
                 (tb, mt))
             x = 0
             while (x < rowNum):
-                ms = "%dm" % x
+                ms = x * 60000
                 tdLog.info(
-                    "insert into %s values (now + %s, %d)" %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    "insert into %s values (now + %s, %d)" %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 x = x + 1
         # TSIM: endw
             i = i + 1
@@ -104,36 +104,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from %s where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % mt)
-        tdSql.query('select * from %s where ts < now + 4m' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % mt)
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % mt)
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % mt)
-        tdSql.query('select * from %s where ts > now + 4m' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % mt)
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % mt)
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % mt)
-        tdSql.query('select * from %s where ts = now + 4m' % mt)
+        # TSIM: sql select * from %s where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % mt)
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % mt)
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             mt)
         tdLog.info('tdSql.checkRow(10)')
         tdSql.checkRows(10)
@@ -267,91 +267,91 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step6
         tdLog.info('=============== step6')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol1 = true
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol1 = true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = true' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = true' %
             mt)
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol1 <> true
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> true' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> true' %
             mt)
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol1 = false
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol1 = false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = false' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = false' %
             mt)
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol1 <> false
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> false' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> false' %
             mt)
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol1 = false
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = false' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = false' %
             mt)
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol1 <> false
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> false' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> false' %
             mt)
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol1 <> false
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> false' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> false' %
             mt)
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol1 <> false
-        # and ts < now + 5m
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> false
+        # and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> false and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> false and ts < 1605045600000 + 300001' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> false and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> false and ts < 1605045600000 + 300001' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -361,84 +361,84 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step7
         tdLog.info('=============== step7')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol2 = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol2 = 1' % mt)
-        tdSql.query('select * from %s where ts > now + 4m and tgcol2 = 1' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1' % mt)
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1' % mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol2 <> 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol2 <> 1' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1' % mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol2 = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol2 = 0' % mt)
-        tdSql.query('select * from %s where ts < now + 4m and tgcol2 = 0' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0' % mt)
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0' % mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol2 <> 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol2 <> 0' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0' % mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol2 = 0
-        tdLog.info('select * from %s where ts <= now + 4m and tgcol2 = 0' % mt)
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0' % mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol2 <> 0
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol2 <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -448,84 +448,84 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol3 = 1' % mt)
-        tdSql.query('select * from %s where ts > now + 4m and tgcol3 = 1' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1' % mt)
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1' % mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol3 <> 1' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1' % mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol3 = 0' % mt)
-        tdSql.query('select * from %s where ts < now + 4m and tgcol3 = 0' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0' % mt)
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0' % mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 <> 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol3 <> 0' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0' % mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 = 0
-        tdLog.info('select * from %s where ts <= now + 4m and tgcol3 = 0' % mt)
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0' % mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 <> 0
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -535,104 +535,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step9
         tdLog.info('=============== step9')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol2 = 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and
         # tgcol1 = true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = 1 and tgcol1 = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and tgcol1 = true' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = 1 and tgcol1 = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and tgcol1 = true' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol2 <> 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and
         # tgcol1 <> true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1 and tgcol1 <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and tgcol1 <> true' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1 and tgcol1 <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and tgcol1 <> true' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol2 = 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and
         # tgcol1 = false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = 0 and tgcol1 = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = false' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = 0 and tgcol1 = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = false' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol2 <> 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and
         # tgcol1 <> false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0 and tgcol1 <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> false' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0 and tgcol1 <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> false' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol2 = 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and
         # tgcol1 = false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0 and tgcol1 = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = false' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0 and tgcol1 = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = false' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol2 <> 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and
         # tgcol1 <> false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0 and tgcol1 <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> false' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0 and tgcol1 <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> false' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> 0 and tgcol1 <> false
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0 and tgcol1 <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol1 <> false' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0 and tgcol1 <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol1 <> false' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol2 <> 0 and ts
-        # < now + 5m and ts < now + 5m and tgcol1 <> false
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts
+        # < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> false
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m and ts < now + 5m and tgcol1 <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> false' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m and ts < now + 5m and tgcol1 <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> false' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -642,104 +642,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step10
         tdLog.info('=============== step10')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 = 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and
         # tgcol1 = true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol1 = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol1 = true' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol1 = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol1 = true' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and
         # tgcol1 <> true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol1 <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol1 <> true' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol1 <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol1 <> true' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol1 = false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol1 = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol1 = false' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol1 = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol1 = false' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol1 <> false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol1 <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol1 <> false' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol1 <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol1 <> false' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol1 = false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol1 = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol1 = false' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol1 = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol1 = false' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol1 <> false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol1 <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol1 <> false' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol1 <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol1 <> false' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0 and tgcol1 <> false
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol1 <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol1 <> false' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol1 <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol1 <> false' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 0 and ts
-        # < now + 5m and ts < now + 5m and tgcol1 <> false
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts
+        # < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> false
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol1 <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> false' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol1 <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> false' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -749,104 +749,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 = 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and
         # tgcol2 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol2 = 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol2 = 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and
         # tgcol2 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol2 <> 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol2 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol2 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 0 and ts
-        # < now + 5m and ts < now + 5m and tgcol2 <> 0
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts
+        # < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -856,104 +856,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step12
         tdLog.info('=============== step12')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol1 = 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1 and
         # tgcol2 = 1 and tgcol3 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol1 <> 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol1 = 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol1 <> 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol1 = 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol1 <> 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol1 <> 0 and ts
-        # < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts
+        # < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1034,12 +1034,12 @@ class TDTestCase:
         # TSIM: print =============== step15
         tdLog.info('=============== step15')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1050,13 +1050,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = true
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = true' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = true' %
             mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = true' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = true' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1067,13 +1067,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = true and tgcol2 = 1
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = true and tgcol2 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = true and tgcol2 = 1' %
             mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = true and tgcol2 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = true and tgcol2 = 1' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1084,11 +1084,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = true and tgcol2 = 1 and tgcol3 = 1
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = true and tgcol2 = 1 and tgcol3 = 1' % mt)
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = true and tgcol2 = 1 and tgcol3 = 1' % mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = true and tgcol2 = 1 and tgcol3 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = true and tgcol2 = 1 and tgcol3 = 1' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1204,13 +1204,13 @@ class TDTestCase:
         # TSIM: print =============== step18
         tdLog.info('=============== step18')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001
         # group by tgcol2
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol2' %
             mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol2' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1221,13 +1221,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = true group by tgcol2
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = true group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = true group by tgcol2' %
             mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = true group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = true group by tgcol2' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1238,11 +1238,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = true and tgcol2 = 1  group by tgcol2
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = true and tgcol2 = 1  group by tgcol2' % mt)
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = true and tgcol2 = 1  group by tgcol2' % mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = true and tgcol2 = 1  group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = true and tgcol2 = 1  group by tgcol2' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1253,10 +1253,10 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = true and tgcol2 = 1 and tgcol3 = 1 group by tgcol2
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = true and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' % mt)
-        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = true and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' % mt)
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = true and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' % mt)
+        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = true and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' % mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
         # TSIM: if $data00 != 25 then
diff --git a/tests/pytest/tag_lite/4.py b/tests/pytest/tag_lite/4.py
index aae930ecdf67c04040c47115daad3e2b662915e9..df81dd81000c0698ea4ab1fb661d3b7f55059fbb 100644
--- a/tests/pytest/tag_lite/4.py
+++ b/tests/pytest/tag_lite/4.py
@@ -64,14 +64,14 @@ class TDTestCase:
                 (tb, mt))
             x = 0
             while (x < rowNum):
-                ms = "%dm" % x
-        # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
+        # TSIM: sql insert into $tb values (1605045600000 + $ms , $x )
                 tdLog.info(
-                    "insert into %s values (now + %s, %d)" %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    "insert into %s values (now + %s, %d)" %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 x = x + 1
         # TSIM: endw
             i = i + 1
@@ -87,14 +87,13 @@ class TDTestCase:
                 (tb, mt))
             x = 0
             while (x < rowNum):
-                ms = "%dm" % x
-        # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    "insert into %s values (now + %s, %d)" %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    "insert into %s values (now + %s, %d)" %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 x = x + 1
         # TSIM: endw
             i = i + 1
@@ -111,36 +110,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from %s where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % mt)
-        tdSql.query('select * from %s where ts < now + 4m' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % mt)
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % mt)
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % mt)
-        tdSql.query('select * from %s where ts > now + 4m' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % mt)
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % mt)
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % mt)
-        tdSql.query('select * from %s where ts = now + 4m' % mt)
+        # TSIM: sql select * from %s where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % mt)
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % mt)
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             mt)
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -322,84 +321,84 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step7
         tdLog.info('=============== step7')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol1 = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol1 = 1' % mt)
-        tdSql.query('select * from %s where ts > now + 4m and tgcol1 = 1' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1' % mt)
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1' % mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol1 <> 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol1 <> 1' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1' % mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol1 = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol1 = 0' % mt)
-        tdSql.query('select * from %s where ts < now + 4m and tgcol1 = 0' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0' % mt)
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0' % mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol1 <> 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol1 <> 0' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0' % mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol1 = 0
-        tdLog.info('select * from %s where ts <= now + 4m and tgcol1 = 0' % mt)
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0' % mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol1 <> 0
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol1 <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -409,84 +408,84 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol2 = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol2 = 1' % mt)
-        tdSql.query('select * from %s where ts > now + 4m and tgcol2 = 1' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1' % mt)
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1' % mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol2 <> 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol2 <> 1' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1' % mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol2 = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol2 = 0' % mt)
-        tdSql.query('select * from %s where ts < now + 4m and tgcol2 = 0' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0' % mt)
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0' % mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol2 <> 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol2 <> 0' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0' % mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol2 = 0
-        tdLog.info('select * from %s where ts <= now + 4m and tgcol2 = 0' % mt)
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0' % mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol2 <> 0
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol2 <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -496,84 +495,84 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step9
         tdLog.info('=============== step9')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol3 = 1' % mt)
-        tdSql.query('select * from %s where ts > now + 4m and tgcol3 = 1' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1' % mt)
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1' % mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol3 <> 1' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1' % mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol3 = 0' % mt)
-        tdSql.query('select * from %s where ts < now + 4m and tgcol3 = 0' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0' % mt)
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0' % mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 <> 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol3 <> 0' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0' % mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 = 0
-        tdLog.info('select * from %s where ts <= now + 4m and tgcol3 = 0' % mt)
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0' % mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 <> 0
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -583,84 +582,84 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step10
         tdLog.info('=============== step10')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol4 = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol4 = 1' % mt)
-        tdSql.query('select * from %s where ts > now + 4m and tgcol4 = 1' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1' % mt)
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1' % mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol4 <> 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol4 <> 1' % mt)
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1' % mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol4 = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol4 = 0' % mt)
-        tdSql.query('select * from %s where ts < now + 4m and tgcol4 = 0' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0' % mt)
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0' % mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol4 <> 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol4 <> 0' % mt)
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0' % mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol4 = 0
-        tdLog.info('select * from %s where ts <= now + 4m and tgcol4 = 0' % mt)
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0' % mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol4 <> 0
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol4 <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -670,104 +669,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol2 = 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and
         # tgcol1 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and tgcol1 = 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and tgcol1 = 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol2 <> 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and
         # tgcol1 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and tgcol1 <> 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and tgcol1 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol2 = 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and
         # tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol2 <> 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol2 = 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and
         # tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol2 <> 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol2 <> 0 and ts
-        # < now + 5m and ts < now + 5m and tgcol1 <> 0
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts
+        # < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -777,104 +776,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step12
         tdLog.info('=============== step12')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 = 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and
         # tgcol1 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol1 = 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol1 = 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and
         # tgcol1 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol1 <> 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol1 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol1 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol1 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol1 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol1 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 0 and ts
-        # < now + 5m and ts < now + 5m and tgcol1 <> 0
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts
+        # < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -884,104 +883,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step13
         tdLog.info('=============== step13')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 = 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and
         # tgcol2 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol2 = 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol2 = 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and
         # tgcol2 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol2 <> 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol2 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol2 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 0 and ts
-        # < now + 5m and ts < now + 5m and tgcol2 <> 0
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts
+        # < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -991,104 +990,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step14
         tdLog.info('=============== step14')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 = 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and
         # tgcol4 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol4 = 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol4 = 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and
         # tgcol4 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol4 <> 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol4 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol4 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol4 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol4 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol4 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol4 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol4 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol4 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol4 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol4 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol4 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol3 <> 0 and ts
-        # < now + 5m and ts < now + 5m and tgcol4 <> 0
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts
+        # < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1098,104 +1097,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step15
         tdLog.info('=============== step15')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol1 = 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1 and
         # tgcol2 = 1 and tgcol3 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol1 <> 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol1 = 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol1 <> 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol1 = 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol1 <> 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol1 <> 0 and ts
-        # < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts
+        # < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1205,104 +1204,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step16
         tdLog.info('=============== step16')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol4 = 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and
         # tgcol2 = 1 and tgcol3 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol4 <> 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol4 <> 0 and ts
-        # < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts
+        # < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1312,105 +1311,105 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step17
         tdLog.info('=============== step17')
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol4 = 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and
         # tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol4 <> 1 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1' %
             mt)
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts < now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts <= now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from %s where ts > now + 4m and tgcol4 <> 0 and ts
-        # < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and
+        # TSIM: sql select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts
+        # < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
             mt)
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1508,12 +1507,12 @@ class TDTestCase:
         # TSIM: print =============== step20
         tdLog.info('=============== step20')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1524,13 +1523,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = 1
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1' %
             mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1541,13 +1540,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = 1 and tgcol2 = 1
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1' %
             mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1558,13 +1557,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1575,10 +1574,10 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1' % mt)
-        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1' % mt)
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1' % mt)
+        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1' % mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
         # TSIM: if $data00 != 25 then
@@ -1722,13 +1721,13 @@ class TDTestCase:
         # TSIM: print =============== step23
         tdLog.info('=============== step23')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001
         # group by tgcol2
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol2' %
             mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol2' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1739,13 +1738,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = 1 group by tgcol2
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 group by tgcol2' %
             mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 group by tgcol2' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1756,11 +1755,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = 1 and tgcol2 = 1  group by tgcol2
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1  group by tgcol2' % mt)
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1  group by tgcol2' % mt)
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1  group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1  group by tgcol2' %
             mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1771,10 +1770,10 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' % mt)
-        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' % mt)
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' % mt)
+        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' % mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
         # TSIM: if $data00 != 25 then
@@ -1784,11 +1783,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and
+        # max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and
         # tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by
         # tgcol2
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by tgcol2' % mt)
-        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by tgcol2' % mt)
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by tgcol2' % mt)
+        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by tgcol2' % mt)
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
         # TSIM: if $data00 != 25 then
diff --git a/tests/pytest/tag_lite/5.py b/tests/pytest/tag_lite/5.py
index b3608bebee649b38b0d1315cc1cb97a43d5365e6..28c8fc125a9c9f27230e63494e9d7f57c5505154 100644
--- a/tests/pytest/tag_lite/5.py
+++ b/tests/pytest/tag_lite/5.py
@@ -76,14 +76,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s, %d)' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s, %d)' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -105,14 +104,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s, %d)' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s, %d)' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -131,36 +129,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -377,98 +375,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol1 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol1 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol1 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol1 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol1 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol1 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol1 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol1 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol1 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol1 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -478,98 +476,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step9
         tdLog.info('=============== step9')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -579,98 +577,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step10
         tdLog.info('=============== step10')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol3 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol3 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol3 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol3 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -680,98 +678,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -781,98 +779,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step12
         tdLog.info('=============== step12')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol5 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol5 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol5 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol5 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol5 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol5 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol5 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol5 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol5 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol5 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol5 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol5 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol5 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol5 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol5 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol5 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -882,104 +880,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step13
         tdLog.info('=============== step13')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = 1 and
         # tgcol1 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and tgcol1 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and tgcol1 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 1 and
         # tgcol1 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and tgcol1 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and tgcol1 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = 0 and
         # tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> 0 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = 0 and
         # tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol1 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -989,104 +987,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step14
         tdLog.info('=============== step14')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 = 1 and
         # tgcol2 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol2 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol2 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 <> 1 and
         # tgcol2 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol2 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol2 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol2 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1096,104 +1094,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step15
         tdLog.info('=============== step15')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 = 1 and
         # tgcol4 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol4 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol4 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 <> 1 and
         # tgcol4 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol4 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol4 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol4 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol4 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol4 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol4 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol4 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1203,104 +1201,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step16
         tdLog.info('=============== step16')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 = 1 and
         # tgcol4 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 = 1 and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 = 1 and tgcol4 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 = 1 and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 = 1 and tgcol4 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 <> 1 and
         # tgcol4 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 <> 1 and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 1 and tgcol4 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 <> 1 and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 1 and tgcol4 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol5 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol5 = 0 and
         # tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol5 = 0 and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 = 0 and tgcol4 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol5 = 0 and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 = 0 and tgcol4 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol5 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol5 <> 0 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol5 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 <> 0 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol5 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 <> 0 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol5 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol5 = 0 and
         # tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol5 = 0 and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 = 0 and tgcol4 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol5 = 0 and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 = 0 and tgcol4 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol5 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol5 <> 0 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol5 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 <> 0 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol5 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 <> 0 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol5 <> 0 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol5 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol5 <> 0 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol5 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol5 <> 0 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol4 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 <> 0 and ts < now + 5m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 <> 0 and ts < now + 5m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1310,104 +1308,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step17
         tdLog.info('=============== step17')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol1 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol1 = 1 and
         # tgcol2 = 1 and tgcol3 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol1 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol1 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol1 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol1 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol1 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol1 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol1 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol1 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol1 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol1 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol1 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol1 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1417,104 +1415,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step18
         tdLog.info('=============== step18')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 = 1 and
         # tgcol2 = 1 and tgcol3 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1524,105 +1522,105 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step19
         tdLog.info('=============== step19')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 = 1 and
         # tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1632,106 +1630,106 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step20
         tdLog.info('=============== step20')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 = 1 and
         # tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and
         # tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol2 <> 0 and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol3 <> 0 and
         # tgcol1 <> 0 and tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1844,12 +1842,12 @@ class TDTestCase:
         # TSIM: print =============== step23
         tdLog.info('=============== step23')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1860,13 +1858,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1877,13 +1875,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1894,13 +1892,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1911,11 +1909,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1' % (mt))
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1' % (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -1926,11 +1924,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and
         # tgcol5 = 1
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and tgcol5 = 1' % (mt))
-        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and tgcol5 = 1' % (mt))
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and tgcol5 = 1' % (mt))
+        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and tgcol5 = 1' % (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
         # TSIM: if $data00 != 25 then
@@ -2106,13 +2104,13 @@ class TDTestCase:
         # TSIM: print =============== step26
         tdLog.info('=============== step26')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol2
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol2' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol2' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2123,13 +2121,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 group by tgcol2
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 group by tgcol2' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 group by tgcol2' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2140,13 +2138,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1  group by tgcol2
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1  group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1  group by tgcol2' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1  group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1  group by tgcol2' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2157,11 +2155,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' % (mt))
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' % (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2172,11 +2170,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by
         # tgcol2
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by tgcol2' % (mt))
-        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by tgcol2' % (mt))
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by tgcol2' % (mt))
+        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by tgcol2' % (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
         # TSIM: if $data00 != 25 then
@@ -2186,11 +2184,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and
         # tgcol5 = 1 group by tgcol2
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and tgcol5 = 1 group by tgcol2' % (mt))
-        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and tgcol5 = 1 group by tgcol2' % (mt))
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and tgcol5 = 1 group by tgcol2' % (mt))
+        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and tgcol5 = 1 group by tgcol2' % (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
         # TSIM: if $data00 != 25 then
diff --git a/tests/pytest/tag_lite/6.py b/tests/pytest/tag_lite/6.py
index b789e41794449e4ec97d03423bfcd03703f7604b..5cf43f10475181202eaa901d0a7ef1d1d23e86e0 100644
--- a/tests/pytest/tag_lite/6.py
+++ b/tests/pytest/tag_lite/6.py
@@ -79,14 +79,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -110,14 +109,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -136,36 +134,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -417,98 +415,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step9
         tdLog.info('=============== step9')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol1 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol1 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol1 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol1 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol1 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol1 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol1 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol1 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol1 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol1 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -518,98 +516,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step10
         tdLog.info('=============== step10')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -619,98 +617,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol3 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol3 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol3 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol3 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -720,98 +718,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step12
         tdLog.info('=============== step12')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -821,98 +819,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step13
         tdLog.info('=============== step13')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol5 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol5 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol5 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol5 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol5 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol5 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol5 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol5 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol5 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol5 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol5 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol5 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol5 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol5 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol5 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol5 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -922,98 +920,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step14
         tdLog.info('=============== step14')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol6 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol6 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol6 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol6 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol6 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol6 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol6 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol6 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol6 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol6 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol6 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol6 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol6 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol6 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol6 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol6 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol6 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol6 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol6 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol6 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol6 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol6 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol6 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol6 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol6 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol6 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol6 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol6 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol6 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol6 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol6 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol6 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol6 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol6 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol6 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol6 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol6 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol6 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol6 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol6 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol6 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol6 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol6 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol6 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol6 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol6 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol6 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1023,104 +1021,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step15
         tdLog.info('=============== step15')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = 1 and
         # tgcol1 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and tgcol1 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and tgcol1 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 1 and
         # tgcol1 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and tgcol1 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and tgcol1 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = 0 and
         # tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> 0 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = 0 and
         # tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and tgcol1 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol1 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m and ts < now + 5m and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1130,104 +1128,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step16
         tdLog.info('=============== step16')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 = 1 and
         # tgcol2 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol2 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol2 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 <> 1 and
         # tgcol2 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol2 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol2 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol2 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol2 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1237,104 +1235,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step17
         tdLog.info('=============== step17')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 = 1 and
         # tgcol4 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol4 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 = 1 and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 = 1 and tgcol4 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 <> 1 and
         # tgcol4 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol4 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 1 and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 1 and tgcol4 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol4 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 = 0 and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 = 0 and tgcol4 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol3 <> 0 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol3 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol3 = 0 and
         # tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol4 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 = 0 and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 = 0 and tgcol4 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol3 <> 0 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol3 <> 0 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol3 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol3 <> 0 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol3 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol4 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol3 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol3 <> 0 and ts < now + 5m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol3 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1344,104 +1342,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step18
         tdLog.info('=============== step18')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 = 1 and
         # tgcol4 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 = 1 and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 = 1 and tgcol4 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 = 1 and tgcol4 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 = 1 and tgcol4 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 <> 1 and
         # tgcol4 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 <> 1 and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 1 and tgcol4 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 <> 1 and tgcol4 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 1 and tgcol4 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol5 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol5 = 0 and
         # tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol5 = 0 and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 = 0 and tgcol4 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol5 = 0 and tgcol4 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 = 0 and tgcol4 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol5 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol5 <> 0 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol5 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 <> 0 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol5 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 <> 0 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol5 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol5 = 0 and
         # tgcol4 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol5 = 0 and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 = 0 and tgcol4 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol5 = 0 and tgcol4 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 = 0 and tgcol4 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol5 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol5 <> 0 and
         # tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol5 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 <> 0 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol5 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 <> 0 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol5 <> 0 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol5 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol5 <> 0 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol5 <> 0 and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol5 <> 0 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol4 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 <> 0 and ts < now + 5m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 <> 0 and ts < now + 5m and ts < now + 5m and tgcol4 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol4 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1451,104 +1449,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step19
         tdLog.info('=============== step19')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 = 1 and
         # tgcol6 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 = 1 and tgcol6 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 = 1 and tgcol6 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 = 1 and tgcol6 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 = 1 and tgcol6 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 <> 1 and
         # tgcol6 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 <> 1 and tgcol6 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 1 and tgcol6 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 <> 1 and tgcol6 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 1 and tgcol6 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol5 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol5 = 0 and
         # tgcol6 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol5 = 0 and tgcol6 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 = 0 and tgcol6 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol5 = 0 and tgcol6 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 = 0 and tgcol6 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol5 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol5 <> 0 and
         # tgcol6 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol5 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol5 = 0 and
         # tgcol6 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol5 = 0 and tgcol6 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 = 0 and tgcol6 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol5 = 0 and tgcol6 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 = 0 and tgcol6 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol5 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol5 <> 0 and
         # tgcol6 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol5 <> 0 and tgcol6 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol5 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol6 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol5 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol6 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol5 <> 0 and ts < now + 5m and ts < now + 5m and tgcol6 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol6 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol5 <> 0 and ts < now + 5m and ts < now + 5m and tgcol6 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol5 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol6 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1558,104 +1556,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step20
         tdLog.info('=============== step20')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol1 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol1 = 1 and
         # tgcol2 = 1 and tgcol3 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol1 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol1 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol1 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol1 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol1 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol1 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol1 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol1 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol1 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol1 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol1 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol1 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol1 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol1 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol1 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol1 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1665,104 +1663,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step21
         tdLog.info('=============== step21')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 = 1 and
         # tgcol2 = 1 and tgcol3 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1772,105 +1770,105 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step22
         tdLog.info('=============== step22')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 = 1 and
         # tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and
         # tgcol1 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1880,106 +1878,106 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step23
         tdLog.info('=============== step23')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 = 1 and
         # tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and
         # tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and
         # tgcol1 <> 0 and tgcol5 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -1989,112 +1987,112 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step24
         tdLog.info('=============== step24')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 = 1 and
         # tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1 and tgcol6 =
         # 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1 and tgcol6 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1 and tgcol6 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1 and tgcol6 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol1 = 1 and tgcol5 = 1 and tgcol6 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 1 and
         # tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1 and
         # tgcol6 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1 and tgcol6 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1 and tgcol6 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1 and tgcol6 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 1 and tgcol2 <> 1  and tgcol3 <> 1 and tgcol1 <> 1 and tgcol5 <> 1 and tgcol6 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0 and tgcol6 =
         # 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0 and tgcol6 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0 and tgcol6 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0 and tgcol6 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0 and tgcol6 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and
         # tgcol6 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 = 0 and
         # tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0 and tgcol6 =
         # 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0 and tgcol6 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0 and tgcol6 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0 and tgcol6 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 = 0 and tgcol2 = 0 and tgcol3 = 0 and tgcol1 = 0 and tgcol5 = 0 and tgcol6 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol4 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and
         # tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and
         # tgcol6 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol4 <> 0 and tgcol2 <> 0 and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and
         # tgcol5 <> 0 and tgcol6 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol4 <> 0 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol4 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol4 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and
         # tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol4 <> 0 and ts < now + 5m and ts < now + 5m and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol4 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol2 <> 0  and tgcol3 <> 0 and tgcol1 <> 0 and tgcol5 <> 0 and tgcol6 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -2221,12 +2219,12 @@ class TDTestCase:
         # TSIM: print =============== step27
         tdLog.info('=============== step27')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2237,13 +2235,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2254,13 +2252,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2271,13 +2269,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2288,11 +2286,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1' % (mt))
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1' % (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2303,11 +2301,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and
         # tgcol5 = 1
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and tgcol5 = 1' % (mt))
-        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and tgcol5 = 1' % (mt))
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and tgcol5 = 1' % (mt))
+        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and tgcol5 = 1' % (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
         # TSIM: if $data00 != 25 then
@@ -2317,11 +2315,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and
         # tgcol5 = 1 and tgcol6 = 1
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and tgcol5 = 1 and tgcol6 = 1' % (mt))
-        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and tgcol5 = 1 and tgcol6 = 1' % (mt))
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and tgcol5 = 1 and tgcol6 = 1' % (mt))
+        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 and tgcol5 = 1 and tgcol6 = 1' % (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
         # TSIM: if $data00 != 25 then
@@ -2527,13 +2525,13 @@ class TDTestCase:
         # TSIM: print =============== step30
         tdLog.info('=============== step30')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol2
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol2' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol2' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2544,13 +2542,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 group by tgcol2
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 group by tgcol2' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 group by tgcol2' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2561,13 +2559,13 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1  group by tgcol2
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1  group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1  group by tgcol2' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1  group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1  group by tgcol2' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2578,11 +2576,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' % (mt))
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' % (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 group by tgcol2' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -2593,11 +2591,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by
         # tgcol2
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by tgcol2' % (mt))
-        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by tgcol2' % (mt))
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by tgcol2' % (mt))
+        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1 group by tgcol2' % (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
         # TSIM: if $data00 != 25 then
@@ -2607,11 +2605,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and
         # tgcol5 = 1 group by tgcol2
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and tgcol5 = 1 group by tgcol2' % (mt))
-        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and tgcol5 = 1 group by tgcol2' % (mt))
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and tgcol5 = 1 group by tgcol2' % (mt))
+        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and tgcol5 = 1 group by tgcol2' % (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
         # TSIM: if $data00 != 25 then
@@ -2621,11 +2619,11 @@ class TDTestCase:
         # TSIM: endi
         # TSIM:
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and
         # tgcol5 = 1 and tgcol6 = 1 group by tgcol2
-        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and tgcol5 = 1 and tgcol6 = 1 group by tgcol2' % (mt))
-        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and tgcol5 = 1 and tgcol6 = 1 group by tgcol2' % (mt))
+        tdLog.info('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and tgcol5 = 1 and tgcol6 = 1 group by tgcol2' % (mt))
+        tdSql.query('select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 and tgcol1 = 1 and tgcol2 = 1 and tgcol3 = 1 and tgcol4 = 1  and tgcol5 = 1 and tgcol6 = 1 group by tgcol2' % (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
         # TSIM: if $data00 != 25 then
diff --git a/tests/pytest/tag_lite/bigint.py b/tests/pytest/tag_lite/bigint.py
index f83961aaad401f337a1dc4f0d305391f22006b9a..733d30983d07ab9e2c30076b76084edb354e289f 100644
--- a/tests/pytest/tag_lite/bigint.py
+++ b/tests/pytest/tag_lite/bigint.py
@@ -72,14 +72,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -98,14 +97,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -124,56 +122,56 @@ class TDTestCase:
         tdSql.checkRows(rowNum)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (tb))
-        tdSql.query('select * from %s where ts < now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts <= now + 4m
-        tdLog.info('select * from %s where ts <= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts <= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts <= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts <= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (tb))
-        tdSql.query('select * from %s where ts > now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts >= now + 4m
-        tdLog.info('select * from %s where ts >= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts >= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts >= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts >= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts >= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
         tdSql.checkRows(1)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m and ts > now + 5m
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
@@ -190,25 +188,25 @@ class TDTestCase:
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 3m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts > now + 5m and
-        # ts < now + 6m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and
+        # ts < 1605045600000 + 360001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
@@ -227,36 +225,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -333,94 +331,94 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol = 1' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' % (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol = 0' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' % (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -467,12 +465,12 @@ class TDTestCase:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -522,13 +520,13 @@ class TDTestCase:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/binary.py b/tests/pytest/tag_lite/binary.py
index 4cbae63bec1ec6a885f015a69bb4192e93cc9629..3825c6637f9357e00bc8491be1d8c2960dde2109 100644
--- a/tests/pytest/tag_lite/binary.py
+++ b/tests/pytest/tag_lite/binary.py
@@ -72,14 +72,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -98,14 +97,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -124,56 +122,56 @@ class TDTestCase:
         tdSql.checkRows(rowNum)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (tb))
-        tdSql.query('select * from %s where ts < now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts <= now + 4m
-        tdLog.info('select * from %s where ts <= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts <= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts <= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts <= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (tb))
-        tdSql.query('select * from %s where ts > now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts >= now + 4m
-        tdLog.info('select * from %s where ts >= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts >= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts >= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts >= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts >= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
         tdSql.checkRows(1)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m and ts > now + 5m
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
@@ -190,25 +188,25 @@ class TDTestCase:
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 3m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts > now + 5m and
-        # ts < now + 6m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and
+        # ts < 1605045600000 + 360001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
@@ -227,36 +225,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -333,98 +331,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = '1'
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = '1'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol = "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = "1"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = "1"' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> '1'
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> '1'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> "1"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> "1"' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = '0'
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = '0'
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol = "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> '0'
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> '0'
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = '0'
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> '0'
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> '0'
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> "0"' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> '0' and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> '0' and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> "0" and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> "0" and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> "0" and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> "0" and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -471,12 +469,12 @@ class TDTestCase:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -526,13 +524,13 @@ class TDTestCase:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/binary_binary.py b/tests/pytest/tag_lite/binary_binary.py
index 9c789eafd655d76362d5bc4729fd4e5da8de2156..2a76238f595ce5b079f0d36453197875d214145c 100644
--- a/tests/pytest/tag_lite/binary_binary.py
+++ b/tests/pytest/tag_lite/binary_binary.py
@@ -74,14 +74,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -102,14 +101,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -128,36 +126,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -269,98 +267,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = '1'
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = '1'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol = "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = "1"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = "1"' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> '1'
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> '1'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> "1"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> "1"' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = '0'
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = '0'
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol = "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> '0'
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> '0'
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = '0'
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> '0'
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> '0'
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> "0"' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> '0' and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> '0' and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> "0" and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> "0" and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> "0" and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> "0" and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -370,98 +368,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step6
         tdLog.info('=============== step6')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = '1'
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = '1'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = "1"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = "1"' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> '1'
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> '1'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "1"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "1"' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = '0'
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = '0'
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> '0'
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> '0'
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = '0'
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> '0'
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> '0'
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> "0"' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> '0' and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> '0' and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> "0" and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "0" and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> "0" and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "0" and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -471,104 +469,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step7
         tdLog.info('=============== step7')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = '1' and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = '1' and
         # tgcol = '1'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = "1" and tgcol = "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = "1" and tgcol = "1"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = "1" and tgcol = "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = "1" and tgcol = "1"' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> '1' and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> '1' and
         # tgcol <> '1'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> "1" and tgcol <> "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "1" and tgcol <> "1"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> "1" and tgcol <> "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "1" and tgcol <> "1"' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = '0' and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = '0' and
         # tgcol = '0'
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = "0" and tgcol = "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = "0" and tgcol = "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = "0" and tgcol = "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = "0" and tgcol = "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> '0' and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> '0' and
         # tgcol <> '0'
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> "0" and tgcol <> "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> "0" and tgcol <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> "0" and tgcol <> "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> "0" and tgcol <> "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = '0' and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = '0' and
         # tgcol = '0'
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = "0" and tgcol = "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = "0" and tgcol = "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = "0" and tgcol = "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = "0" and tgcol = "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> '0'
         # and tgcol <> '0'
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> "0" and tgcol <> "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> "0" and tgcol <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> "0" and tgcol <> "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> "0" and tgcol <> "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> '0' and tgcol <> '0'
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> "0" and tgcol <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> "0" and tgcol <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> "0" and tgcol <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> "0" and tgcol <> "0"' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> '0' and
-        # ts < now + 5m and ts < now + 5m and tgcol <> '0'
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> '0' and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> '0'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> "0" and ts < now + 5m and ts < now + 5m and tgcol <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "0" and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> "0" and ts < now + 5m and ts < now + 5m and tgcol <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "0" and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> "0"' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -648,12 +646,12 @@ class TDTestCase:
         # TSIM: print =============== step10
         tdLog.info('=============== step10')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -738,13 +736,13 @@ class TDTestCase:
         # TSIM: print =============== step13
         tdLog.info('=============== step13')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/bool.py b/tests/pytest/tag_lite/bool.py
index 6f2afd262509571187b83cba26d6773dbfde0464..11ce9eb7f8126e9d0adf4bedeaf055e3f4ab2c1b 100644
--- a/tests/pytest/tag_lite/bool.py
+++ b/tests/pytest/tag_lite/bool.py
@@ -71,14 +71,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -97,14 +96,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -123,81 +121,81 @@ class TDTestCase:
         tdSql.checkRows(rowNum)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (tb))
-        tdSql.query('select * from %s where ts < now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts <= now + 4m
-        tdLog.info('select * from %s where ts <= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts <= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts <= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts <= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (tb))
-        tdSql.query('select * from %s where ts > now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts >= now + 4m
-        tdLog.info('select * from %s where ts >= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts >= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts >= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts >= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts >= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
         tdSql.checkRows(1)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m and ts > now + 5m
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 3m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts > now + 5m and
-        # ts < now + 6m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and
+        # ts < 1605045600000 + 360001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
@@ -216,36 +214,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -324,98 +322,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = true
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = true' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = true' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> true
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> true' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> true' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = false
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> false
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = false
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> false
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> false
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> false
-        # and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> false
+        # and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> false and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> false and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> false and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> false and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -462,12 +460,12 @@ class TDTestCase:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -517,13 +515,13 @@ class TDTestCase:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/bool_binary.py b/tests/pytest/tag_lite/bool_binary.py
index bfc496e8e4013ab5fb1bf929d7aeb3d37238b343..934d91c9084e7631feb6c34c596b23a7e0314cb7 100644
--- a/tests/pytest/tag_lite/bool_binary.py
+++ b/tests/pytest/tag_lite/bool_binary.py
@@ -71,14 +71,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -96,14 +95,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -122,36 +120,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -263,98 +261,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = true
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = true' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = true' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> true
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> true' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> true' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = false
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> false
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = false
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> false
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> false
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> false
-        # and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> false
+        # and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> false and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> false and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> false and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> false and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -364,98 +362,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step6
         tdLog.info('=============== step6')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = '1'
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = '1'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = "1"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = "1"' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> '1'
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> '1'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "1"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "1"' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = '0'
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = '0'
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> '0'
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> '0'
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = '0'
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> '0'
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> '0'
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> "0"' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> '0' and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> '0' and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> "0" and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "0" and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> "0" and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "0" and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -465,104 +463,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step7
         tdLog.info('=============== step7')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = '1' and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = '1' and
         # tgcol = true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = "1" and tgcol = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = "1" and tgcol = true' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = "1" and tgcol = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = "1" and tgcol = true' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> '1' and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> '1' and
         # tgcol <> true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> "1" and tgcol <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "1" and tgcol <> true' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> "1" and tgcol <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "1" and tgcol <> true' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = '0' and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = '0' and
         # tgcol = false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = "0" and tgcol = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = "0" and tgcol = false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = "0" and tgcol = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = "0" and tgcol = false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> '0' and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> '0' and
         # tgcol <> false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> "0" and tgcol <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> "0" and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> "0" and tgcol <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> "0" and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = '0' and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = '0' and
         # tgcol = false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = "0" and tgcol = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = "0" and tgcol = false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = "0" and tgcol = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = "0" and tgcol = false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> '0'
         # and tgcol <> false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> "0" and tgcol <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> "0" and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> "0" and tgcol <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> "0" and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> '0' and tgcol <> false
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> "0" and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> "0" and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> "0" and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> "0" and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> '0' and
-        # ts < now + 5m and ts < now + 5m and tgcol <> false
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> '0' and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> false
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> "0" and ts < now + 5m and ts < now + 5m and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "0" and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> "0" and ts < now + 5m and ts < now + 5m and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "0" and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -642,12 +640,12 @@ class TDTestCase:
         # TSIM: print =============== step10
         tdLog.info('=============== step10')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -732,13 +730,13 @@ class TDTestCase:
         # TSIM: print =============== step13
         tdLog.info('=============== step13')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/bool_int.py b/tests/pytest/tag_lite/bool_int.py
index f7bfc7acef276609c8606185102b5463807d577a..1e857192ede0602c8aa5e279da12ea488559ec07 100644
--- a/tests/pytest/tag_lite/bool_int.py
+++ b/tests/pytest/tag_lite/bool_int.py
@@ -71,14 +71,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -96,14 +95,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -122,36 +120,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -295,98 +293,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = true
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = true' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = true' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> true
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> true' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> true' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = false
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> false
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = false
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> false
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> false
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> false
-        # and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> false
+        # and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> false and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> false and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> false and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> false and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -396,98 +394,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step6
         tdLog.info('=============== step6')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -497,104 +495,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step7
         tdLog.info('=============== step7')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = 1 and
         # tgcol = true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = 1 and tgcol = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and tgcol = true' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = 1 and tgcol = true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and tgcol = true' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 1 and
         # tgcol <> true
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1 and tgcol <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and tgcol <> true' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1 and tgcol <> true' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and tgcol <> true' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = 0 and
         # tgcol = false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = 0 and tgcol = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and tgcol = false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = 0 and tgcol = false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and tgcol = false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> 0 and
         # tgcol <> false
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0 and tgcol <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0 and tgcol <> false' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = 0 and
         # tgcol = false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0 and tgcol = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and tgcol = false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0 and tgcol = false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and tgcol = false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and
         # tgcol <> false
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0 and tgcol <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0 and tgcol <> false' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> 0 and tgcol <> false
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0 and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0 and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol <> false
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> false
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m and ts < now + 5m and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> false' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m and ts < now + 5m and tgcol <> false' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> false' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -674,12 +672,12 @@ class TDTestCase:
         # TSIM: print =============== step10
         tdLog.info('=============== step10')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -764,13 +762,13 @@ class TDTestCase:
         # TSIM: print =============== step13
         tdLog.info('=============== step13')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/double.py b/tests/pytest/tag_lite/double.py
index b1f29f592e70c582cde9b9eff114ff78843c6fc3..c9d3a5af9e88a0c1faccfabd17245dcaf54b179f 100644
--- a/tests/pytest/tag_lite/double.py
+++ b/tests/pytest/tag_lite/double.py
@@ -72,14 +72,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -98,14 +97,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -124,56 +122,56 @@ class TDTestCase:
         tdSql.checkRows(rowNum)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (tb))
-        tdSql.query('select * from %s where ts < now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts <= now + 4m
-        tdLog.info('select * from %s where ts <= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts <= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts <= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts <= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (tb))
-        tdSql.query('select * from %s where ts > now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts >= now + 4m
-        tdLog.info('select * from %s where ts >= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts >= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts >= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts >= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts >= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
         tdSql.checkRows(1)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m and ts > now + 5m
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
@@ -190,25 +188,25 @@ class TDTestCase:
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 3m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts > now + 5m and
-        # ts < now + 6m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and
+        # ts < 1605045600000 + 360001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
@@ -227,36 +225,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -333,94 +331,94 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol = 1' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' % (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol = 0' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' % (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -467,12 +465,12 @@ class TDTestCase:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -522,13 +520,13 @@ class TDTestCase:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/float.py b/tests/pytest/tag_lite/float.py
index 7b93cb0ac91d49299aedfa63e5dcc8571415cdce..589df89ab9e000dae8c953bb64aaeda51ca0c86c 100644
--- a/tests/pytest/tag_lite/float.py
+++ b/tests/pytest/tag_lite/float.py
@@ -72,14 +72,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -98,14 +97,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -124,56 +122,56 @@ class TDTestCase:
         tdSql.checkRows(rowNum)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (tb))
-        tdSql.query('select * from %s where ts < now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts <= now + 4m
-        tdLog.info('select * from %s where ts <= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts <= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts <= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts <= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (tb))
-        tdSql.query('select * from %s where ts > now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts >= now + 4m
-        tdLog.info('select * from %s where ts >= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts >= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts >= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts >= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts >= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
         tdSql.checkRows(1)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m and ts > now + 5m
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
@@ -190,25 +188,25 @@ class TDTestCase:
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 3m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts > now + 5m and
-        # ts < now + 6m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and
+        # ts < 1605045600000 + 360001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
@@ -227,36 +225,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -333,94 +331,94 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol = 1' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' % (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol = 0' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' % (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -467,12 +465,12 @@ class TDTestCase:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -522,13 +520,13 @@ class TDTestCase:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/int.py b/tests/pytest/tag_lite/int.py
index d5a69173893c4e5c8341b6235c5dd8465f913111..1297d083a0d9aa30a21c3235c89a31236175a119 100644
--- a/tests/pytest/tag_lite/int.py
+++ b/tests/pytest/tag_lite/int.py
@@ -71,14 +71,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -97,14 +96,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -123,56 +121,56 @@ class TDTestCase:
         tdSql.checkRows(rowNum)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (tb))
-        tdSql.query('select * from %s where ts < now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts <= now + 4m
-        tdLog.info('select * from %s where ts <= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts <= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts <= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts <= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (tb))
-        tdSql.query('select * from %s where ts > now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts >= now + 4m
-        tdLog.info('select * from %s where ts >= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts >= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts >= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts >= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts >= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
         tdSql.checkRows(1)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m and ts > now + 5m
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
@@ -189,25 +187,25 @@ class TDTestCase:
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 3m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts > now + 5m and
-        # ts < now + 6m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and
+        # ts < 1605045600000 + 360001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
@@ -226,36 +224,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -332,94 +330,94 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol = 1' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' % (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol = 0' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' % (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -466,12 +464,12 @@ class TDTestCase:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -521,13 +519,13 @@ class TDTestCase:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/int_binary.py b/tests/pytest/tag_lite/int_binary.py
index 7760814f664b4b04d42b67bba3f86ce069928b70..6ce9a9a431f644e1a6c9e7c9dece955dc9f40bfd 100644
--- a/tests/pytest/tag_lite/int_binary.py
+++ b/tests/pytest/tag_lite/int_binary.py
@@ -72,14 +72,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -98,14 +97,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -124,36 +122,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -265,94 +263,94 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol = 1' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' % (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol = 0' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' % (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -362,98 +360,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step6
         tdLog.info('=============== step6')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = '1'
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = '1'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = "1"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = "1"' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> '1'
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> '1'
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "1"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> "1"' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "1"' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = '0'
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = '0'
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> '0'
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> '0'
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> "0"' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = '0'
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> '0'
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> "0"' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> "0"' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> '0'
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> "0"' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> "0"' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> "0"' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> '0' and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> '0' and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> "0" and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "0" and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> "0" and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "0" and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -463,104 +461,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step7
         tdLog.info('=============== step7')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = '1' and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = '1' and
         # tgcol = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = "1" and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = "1" and tgcol = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = "1" and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = "1" and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> '1' and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> '1' and
         # tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> "1" and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "1" and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> "1" and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "1" and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = '0' and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = '0' and
         # tgcol = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = "0" and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = "0" and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = "0" and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = "0" and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> '0' and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> '0' and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> "0" and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> "0" and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> "0" and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> "0" and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = '0' and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = '0' and
         # tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = "0" and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = "0" and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = "0" and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = "0" and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> '0'
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> '0'
         # and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> "0" and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> "0" and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> "0" and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> "0" and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> '0' and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> "0" and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> "0" and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> "0" and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> "0" and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> '0' and
-        # ts < now + 5m and ts < now + 5m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> '0' and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> "0" and ts < now + 5m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "0" and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> "0" and ts < now + 5m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> "0" and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -640,12 +638,12 @@ class TDTestCase:
         # TSIM: print =============== step10
         tdLog.info('=============== step10')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -730,13 +728,13 @@ class TDTestCase:
         # TSIM: print =============== step13
         tdLog.info('=============== step13')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/int_float.py b/tests/pytest/tag_lite/int_float.py
index 31c94130ab30e83c68ab017e44cf313202e6b966..341acfd5ae0784c0d0d46a0757490fdfe8bca599 100644
--- a/tests/pytest/tag_lite/int_float.py
+++ b/tests/pytest/tag_lite/int_float.py
@@ -72,14 +72,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -98,14 +97,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -124,36 +122,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -301,94 +299,94 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol = 1' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' % (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol = 0' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' % (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -398,98 +396,98 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step6
         tdLog.info('=============== step6')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 0 and
-        # ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 0 and
+        # ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -499,104 +497,104 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step7
         tdLog.info('=============== step7')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 = 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 = 1 and
         # tgcol = 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 = 1 and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and tgcol = 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 = 1 and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 = 1 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 1 and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 1 and
         # tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1 and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 1 and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 1 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 = 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 = 0 and
         # tgcol = 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 = 0 and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 = 0 and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 = 0 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol2 <> 0 and
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol2 <> 0 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0 and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol2 <> 0 and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol2 <> 0 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 = 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 = 0 and
         # tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0 and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 = 0 and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 = 0 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol2 <> 0 and
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0 and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol2 <> 0 and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol2 <> 0 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol2 <> 0 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0 and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol2 <> 0 and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol2 <> 0 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol2 <> 0 and
-        # ts < now + 5m and ts < now + 5m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol2 <> 0 and
+        # ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol2 <> 0 and ts < now + 5m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol2 <> 0 and ts < 1605045600000 + 300001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -676,12 +674,12 @@ class TDTestCase:
         # TSIM: print =============== step10
         tdLog.info('=============== step10')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -766,13 +764,13 @@ class TDTestCase:
         # TSIM: print =============== step13
         tdLog.info('=============== step13')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/smallint.py b/tests/pytest/tag_lite/smallint.py
index c060e3f82b6b5f2b6d32fd50e5ea8181f655ad9b..93fde22ca92219852426ac18c550231130d23384 100644
--- a/tests/pytest/tag_lite/smallint.py
+++ b/tests/pytest/tag_lite/smallint.py
@@ -72,14 +72,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -98,14 +97,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -124,56 +122,56 @@ class TDTestCase:
         tdSql.checkRows(rowNum)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (tb))
-        tdSql.query('select * from %s where ts < now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts <= now + 4m
-        tdLog.info('select * from %s where ts <= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts <= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts <= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts <= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (tb))
-        tdSql.query('select * from %s where ts > now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts >= now + 4m
-        tdLog.info('select * from %s where ts >= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts >= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts >= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts >= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts >= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
         tdSql.checkRows(1)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m and ts > now + 5m
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
@@ -190,25 +188,25 @@ class TDTestCase:
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 3m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts > now + 5m and
-        # ts < now + 6m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and
+        # ts < 1605045600000 + 360001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
@@ -227,36 +225,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -333,94 +331,94 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol = 1' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' % (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol = 0' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' % (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -467,12 +465,12 @@ class TDTestCase:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -522,13 +520,13 @@ class TDTestCase:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/tinyint.py b/tests/pytest/tag_lite/tinyint.py
index 089dd46569578c1ca33d73639cb36a0bba03e0f0..fc4af4ee9648ef6aca5badeada5420063f76050b 100644
--- a/tests/pytest/tag_lite/tinyint.py
+++ b/tests/pytest/tag_lite/tinyint.py
@@ -72,14 +72,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -98,14 +97,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -124,56 +122,56 @@ class TDTestCase:
         tdSql.checkRows(rowNum)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (tb))
-        tdSql.query('select * from %s where ts < now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts <= now + 4m
-        tdLog.info('select * from %s where ts <= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts <= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts <= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts <= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (tb))
-        tdSql.query('select * from %s where ts > now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts >= now + 4m
-        tdLog.info('select * from %s where ts >= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts >= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts >= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts >= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts >= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
         tdSql.checkRows(1)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m and ts > now + 5m
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
@@ -190,25 +188,25 @@ class TDTestCase:
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 3m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts > now + 5m and
-        # ts < now + 6m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and
+        # ts < 1605045600000 + 360001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
@@ -227,36 +225,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -333,94 +331,94 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol = 1' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' % (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol = 0' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' % (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -467,12 +465,12 @@ class TDTestCase:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -522,13 +520,13 @@ class TDTestCase:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/unsignedBigint.py b/tests/pytest/tag_lite/unsignedBigint.py
index 032dacd366437c378b0b8c9b553d6495966cd563..6a33812f8839bf8c329c35b9c700bf5479d14a64 100644
--- a/tests/pytest/tag_lite/unsignedBigint.py
+++ b/tests/pytest/tag_lite/unsignedBigint.py
@@ -72,14 +72,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -98,14 +97,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -124,56 +122,56 @@ class TDTestCase:
         tdSql.checkRows(rowNum)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (tb))
-        tdSql.query('select * from %s where ts < now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts <= now + 4m
-        tdLog.info('select * from %s where ts <= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts <= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts <= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts <= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (tb))
-        tdSql.query('select * from %s where ts > now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts >= now + 4m
-        tdLog.info('select * from %s where ts >= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts >= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts >= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts >= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts >= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
         tdSql.checkRows(1)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m and ts > now + 5m
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
@@ -190,25 +188,25 @@ class TDTestCase:
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 3m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts > now + 5m and
-        # ts < now + 6m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and
+        # ts < 1605045600000 + 360001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
@@ -227,36 +225,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -333,94 +331,94 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol = 1' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' % (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol = 0' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' % (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -467,12 +465,12 @@ class TDTestCase:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -522,13 +520,13 @@ class TDTestCase:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/unsignedInt.py b/tests/pytest/tag_lite/unsignedInt.py
index 6efe12edf110f70d9c2c0187429a0696372bae49..ce6c546a3f8f2ccb3b60fbf6846ca8258d689c2c 100644
--- a/tests/pytest/tag_lite/unsignedInt.py
+++ b/tests/pytest/tag_lite/unsignedInt.py
@@ -72,14 +72,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -98,14 +97,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -124,56 +122,56 @@ class TDTestCase:
         tdSql.checkRows(rowNum)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (tb))
-        tdSql.query('select * from %s where ts < now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts <= now + 4m
-        tdLog.info('select * from %s where ts <= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts <= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts <= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts <= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (tb))
-        tdSql.query('select * from %s where ts > now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts >= now + 4m
-        tdLog.info('select * from %s where ts >= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts >= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts >= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts >= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts >= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
         tdSql.checkRows(1)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m and ts > now + 5m
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
@@ -190,25 +188,25 @@ class TDTestCase:
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 3m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts > now + 5m and
-        # ts < now + 6m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and
+        # ts < 1605045600000 + 360001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
@@ -227,36 +225,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -333,94 +331,94 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol = 1' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' % (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol = 0' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' % (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -467,12 +465,12 @@ class TDTestCase:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -522,13 +520,13 @@ class TDTestCase:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/unsignedSmallint.py b/tests/pytest/tag_lite/unsignedSmallint.py
index 59cb33dc18eb74b27e9a916e921e10cbabf1b4eb..21c390d9dca81fc6eb6ef87435acb1bf6d12c406 100644
--- a/tests/pytest/tag_lite/unsignedSmallint.py
+++ b/tests/pytest/tag_lite/unsignedSmallint.py
@@ -72,14 +72,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -98,14 +97,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -124,56 +122,56 @@ class TDTestCase:
         tdSql.checkRows(rowNum)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (tb))
-        tdSql.query('select * from %s where ts < now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts <= now + 4m
-        tdLog.info('select * from %s where ts <= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts <= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts <= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts <= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (tb))
-        tdSql.query('select * from %s where ts > now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts >= now + 4m
-        tdLog.info('select * from %s where ts >= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts >= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts >= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts >= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts >= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
         tdSql.checkRows(1)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m and ts > now + 5m
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
@@ -190,25 +188,25 @@ class TDTestCase:
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 3m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts > now + 5m and
-        # ts < now + 6m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and
+        # ts < 1605045600000 + 360001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
@@ -227,36 +225,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -333,94 +331,94 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol = 1' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' % (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol = 0' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' % (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -467,12 +465,12 @@ class TDTestCase:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -522,13 +520,13 @@ class TDTestCase:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
diff --git a/tests/pytest/tag_lite/unsignedTinyint.py b/tests/pytest/tag_lite/unsignedTinyint.py
index 1250b08d1b8dd4d3cb5f61af424576146ab70967..7ce3a8398444efae63ccdc93062c00c81c644da0 100644
--- a/tests/pytest/tag_lite/unsignedTinyint.py
+++ b/tests/pytest/tag_lite/unsignedTinyint.py
@@ -72,14 +72,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -98,14 +97,13 @@ class TDTestCase:
             # TSIM: while $x < $rowNum
             while (x < rowNum):
                 # TSIM: $ms = $x . m
-                ms = "%dm" % x
-                # TSIM: sql insert into $tb values (now + $ms , $x )
+                ms = x * 60000
                 tdLog.info(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 tdSql.execute(
-                    'insert into %s values (now + %s , %d )' %
-                    (tb, ms, x))
+                    "insert into %s values (%d, %d)" %
+                    (tb, 1605045600000 + ms, x))
                 # TSIM: $x = $x + 1
                 x = x + 1
                 # TSIM: endw
@@ -124,56 +122,56 @@ class TDTestCase:
         tdSql.checkRows(rowNum)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (tb))
-        tdSql.query('select * from %s where ts < now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts <= now + 4m
-        tdLog.info('select * from %s where ts <= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts <= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts <= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts <= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts <= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (tb))
-        tdSql.query('select * from %s where ts > now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts >= now + 4m
-        tdLog.info('select * from %s where ts >= now + 4m' % (tb))
-        tdSql.query('select * from %s where ts >= now + 4m' % (tb))
+        # TSIM: sql select * from $tb where ts >= 1605045600000 + 240001
+        tdLog.info('select * from %s where ts >= 1605045600000 + 240001' % (tb))
+        tdSql.query('select * from %s where ts >= 1605045600000 + 240001' % (tb))
         # TSIM: if $rows != 15 then
         tdLog.info('tdSql.checkRow(15)')
         tdSql.checkRows(15)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
         tdSql.checkRows(1)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts < now + 4m and ts > now + 5m
+        # TSIM: sql select * from $tb where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts < now + 4m and ts > now + 5m' %
+            'select * from %s where ts < 1605045600000 + 240001 and ts > 1605045600000 + 300001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
@@ -190,25 +188,25 @@ class TDTestCase:
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts < now + 3m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 3m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 180001' %
             (tb))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $tb where ts > now + 4m and ts > now + 5m and
-        # ts < now + 6m
+        # TSIM: sql select * from $tb where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and
+        # ts < 1605045600000 + 360001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts > now + 5m and ts < now + 6m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts > 1605045600000 + 300001 and ts < 1605045600000 + 360001' %
             (tb))
         # TSIM: if $rows != 1 then
         tdLog.info('tdSql.checkRow(1)')
@@ -227,36 +225,36 @@ class TDTestCase:
         # TSIM: return -1
         # TSIM: endi
         # TSIM:
-        # TSIM: sql select * from $mt where ts < now + 4m
-        tdLog.info('select * from %s where ts < now + 4m' % (mt))
-        tdSql.query('select * from %s where ts < now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts < 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 50 then
         tdLog.info('tdSql.checkRow(50)')
         tdSql.checkRows(50)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m
-        tdLog.info('select * from %s where ts > now + 4m' % (mt))
-        tdSql.query('select * from %s where ts > now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts > 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 150 then
         tdLog.info('tdSql.checkRow(150)')
         tdSql.checkRows(150)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts = now + 4m
-        tdLog.info('select * from %s where ts = now + 4m' % (mt))
-        tdSql.query('select * from %s where ts = now + 4m' % (mt))
+        # TSIM: sql select * from $mt where ts = 1605045600000 + 240001
+        tdLog.info('select * from %s where ts = 1605045600000 + 240001' % (mt))
+        tdSql.query('select * from %s where ts = 1605045600000 + 240001' % (mt))
         # TSIM: if $rows != 0 then
         tdLog.info('tdSql.checkRow(0)')
         tdSql.checkRows(0)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 10 then
         tdLog.info('tdSql.checkRow(10)')
@@ -333,94 +331,94 @@ class TDTestCase:
         # TSIM:
         # TSIM: print =============== step5
         tdLog.info('=============== step5')
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol = 1
-        tdLog.info('select * from %s where ts > now + 4m and tgcol = 1' % (mt))
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol = 1
+        tdLog.info('select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' % (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol = 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol = 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 1
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 1
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 1' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 1' %
             (mt))
         # TSIM: if $rows != 75 then
         tdLog.info('tdSql.checkRow(75)')
         tdSql.checkRows(75)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol = 0
-        tdLog.info('select * from %s where ts < now + 4m and tgcol = 0' % (mt))
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol = 0
+        tdLog.info('select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' % (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol = 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts < now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts < 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts < now + 4m and tgcol <> 0' %
+            'select * from %s where ts < 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol = 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol = 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol = 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol = 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts <= now + 4m and tgcol <> 0
+        # TSIM: sql select * from $mt where ts <= 1605045600000 + 240001 and tgcol <> 0
         tdLog.info(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts <= now + 4m and tgcol <> 0' %
+            'select * from %s where ts <= 1605045600000 + 240001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 25 then
         tdLog.info('tdSql.checkRow(25)')
         tdSql.checkRows(25)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and ts < now + 5m and
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and
         # tgcol <> 0
         tdLog.info(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and ts < now + 5m and tgcol <> 0' %
+            'select * from %s where ts > 1605045600000 + 240001 and ts < 1605045600000 + 300001 and tgcol <> 0' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
         tdSql.checkRows(5)
         # TSIM: return -1
         # TSIM: endi
-        # TSIM: sql select * from $mt where ts > now + 4m and tgcol <> 0 and ts
-        # < now + 5m
+        # TSIM: sql select * from $mt where ts > 1605045600000 + 240001 and tgcol <> 0 and ts
+        # < 1605045600000 + 300001
         tdLog.info(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         tdSql.query(
-            'select * from %s where ts > now + 4m and tgcol <> 0 and ts < now + 5m' %
+            'select * from %s where ts > 1605045600000 + 240001 and tgcol <> 0 and ts < 1605045600000 + 300001' %
             (mt))
         # TSIM: if $rows != 5 then
         tdLog.info('tdSql.checkRow(5)')
@@ -467,12 +465,12 @@ class TDTestCase:
         # TSIM: print =============== step8
         tdLog.info('=============== step8')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')
@@ -522,13 +520,13 @@ class TDTestCase:
         # TSIM: print =============== step11
         tdLog.info('=============== step11')
         # TSIM: sql select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol),
-        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < now + 4m
+        # max(tbcol), first(tbcol), last(tbcol) from $mt where ts < 1605045600000 + 240001
         # group by tgcol
         tdLog.info(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         tdSql.query(
-            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < now + 4m group by tgcol' %
+            'select count(tbcol), avg(tbcol), sum(tbcol), min(tbcol), max(tbcol), first(tbcol), last(tbcol) from %s where ts < 1605045600000 + 240001 group by tgcol' %
             (mt))
         # TSIM: print $data00 $data01 $data02 $data03 $data04 $data05 $data06
         tdLog.info('$data00 $data01 $data02 $data03 $data04 $data05 $data06')