diff --git a/visualdl/server/lib.py b/visualdl/server/lib.py
index 660b1ae6b26ab3ce47bf1749554a8fb8212e21e8..00ee95506686f50496994cae8c040b1d45b1f1a2 100644
--- a/visualdl/server/lib.py
+++ b/visualdl/server/lib.py
@@ -22,6 +22,10 @@ from visualdl.io import bfile
 from visualdl.utils.string_util import encode_tag, decode_tag
 
 
+def s2ms(timestamp):
+    return timestamp * 1000 if timestamp < 2000000000 else timestamp
+
+
 def get_components(log_reader):
     components = log_reader.components(update=True)
     components.add('graph')
@@ -77,7 +81,7 @@ def get_scalar(log_reader, run, tag):
     log_reader.load_new_data()
     records = log_reader.data_manager.get_reservoir("scalar").get_items(
         run, decode_tag(tag))
-    results = [[item.timestamp, item.id, item.value] for item in records]
+    results = [[s2ms(item.timestamp), item.id, item.value] for item in records]
     return results
 
 
@@ -92,7 +96,7 @@ def get_image_tag_steps(log_reader, run, tag):
         run, decode_tag(tag))
     result = [{
         "step": item.id,
-        "wallTime": item.timestamp
+        "wallTime": s2ms(item.timestamp)
     } for item in records]
     return result
 
@@ -116,7 +120,7 @@ def get_audio_tag_steps(log_reader, run, tag):
         run, decode_tag(tag))
     result = [{
         "step": item.id,
-        "wallTime": item.timestamp
+        "wallTime": s2ms(item.timestamp)
     } for item in records]
     return result
 
@@ -152,7 +156,7 @@ def get_pr_curve(log_reader, run, tag):
         pr_curve = item.pr_curve
         length = len(pr_curve.precision)
         num_thresholds = [float(v) / length for v in range(1, length + 1)]
-        results.append([item.timestamp,
+        results.append([s2ms(item.timestamp),
                         item.id,
                         list(pr_curve.precision),
                         list(pr_curve.recall),
@@ -171,7 +175,7 @@ def get_pr_curve_step(log_reader, run, tag=None):
     log_reader.load_new_data()
     records = log_reader.data_manager.get_reservoir("pr_curve").get_items(
         run, decode_tag(tag))
-    results = [[item.timestamp, item.id] for item in records]
+    results = [[s2ms(item.timestamp), item.id] for item in records]
     return results
 
 
@@ -213,7 +217,7 @@ def get_histogram(log_reader, run, tag):
         histogram_data = []
         for index in range(len(hist)):
             histogram_data.append([bin_edges[index], bin_edges[index+1], hist[index]])
-        results.append([item.timestamp, item.id, histogram_data])
+        results.append([s2ms(item.timestamp), item.id, histogram_data])
 
     return results
 
diff --git a/visualdl/writer/writer.py b/visualdl/writer/writer.py
index fed40d59c3424255551c457cd76efebf0ea6f86c..140c244da871eb8979127540b918791a5d4d5658 100644
--- a/visualdl/writer/writer.py
+++ b/visualdl/writer/writer.py
@@ -138,7 +138,7 @@ class LogWriter(object):
         """
         if '%' in tag:
             raise RuntimeError("% can't appear in tag!")
-        walltime = round(time.time()) if walltime is None else walltime
+        walltime = round(time.time() * 1000) if walltime is None else walltime
         self._get_file_writer().add_record(
             meta_data(tag=tag, display_name=display_name, step=step,
                       walltime=walltime))
@@ -159,7 +159,7 @@ class LogWriter(object):
         """
         if '%' in tag:
             raise RuntimeError("% can't appear in tag!")
-        walltime = round(time.time()) if walltime is None else walltime
+        walltime = round(time.time() * 1000) if walltime is None else walltime
         self._get_file_writer().add_record(
             scalar(tag=tag, value=value, step=step, walltime=walltime))
 
@@ -182,7 +182,7 @@ class LogWriter(object):
         """
         if '%' in tag:
             raise RuntimeError("% can't appear in tag!")
-        walltime = round(time.time()) if walltime is None else walltime
+        walltime = round(time.time() * 1000) if walltime is None else walltime
         self._get_file_writer().add_record(
             image(tag=tag, image_array=img, step=step, walltime=walltime))
 
@@ -207,7 +207,7 @@ class LogWriter(object):
             labels = ["label_1", "label_2", "label_3", "label_4", "label_5"]
 
             writer.add_embedding(labels=labels, vectors=hot_vectors,
-                                 walltime=round(time.time()))
+                                 walltime=round(time.time() * 1000))
         """
         if '%' in tag:
             raise RuntimeError("% can't appear in tag!")
@@ -216,7 +216,7 @@ class LogWriter(object):
         if isinstance(labels, np.ndarray):
             labels = labels.tolist()
         step = 0
-        walltime = round(time.time()) if walltime is None else walltime
+        walltime = round(time.time() * 1000) if walltime is None else walltime
         self._get_file_writer().add_record(
             embedding(
                 tag=tag,
@@ -260,7 +260,7 @@ class LogWriter(object):
         """
         if '%' in tag:
             raise RuntimeError("% can't appear in tag!")
-        walltime = round(time.time()) if walltime is None else walltime
+        walltime = round(time.time() * 1000) if walltime is None else walltime
         if isinstance(audio_array, list):
             audio_array = np.array(audio_array)
         self._get_file_writer().add_record(
@@ -297,7 +297,7 @@ class LogWriter(object):
         if '%' in tag:
             raise RuntimeError("% can't appear in tag!")
         hist, bin_edges = np.histogram(values, bins=buckets)
-        walltime = round(time.time()) if walltime is None else walltime
+        walltime = round(time.time() * 1000) if walltime is None else walltime
         self._get_file_writer().add_record(
             histogram(
                 tag=tag,
@@ -338,7 +338,7 @@ class LogWriter(object):
         """
         if '%' in tag:
             raise RuntimeError("% can't appear in tag!")
-        walltime = round(time.time()) if walltime is None else walltime
+        walltime = round(time.time() * 1000) if walltime is None else walltime
         self._get_file_writer().add_record(
             pr_curve(
                 tag=tag,