diff --git a/bsp/bluetrum/libraries/hal_drivers/drv_rtc.c b/bsp/bluetrum/libraries/hal_drivers/drv_rtc.c
index 56c75aae595a6f78539cc746ab0e5075c6a8f39b..fab2d749a8500133e2e78f28b2389ffc22dcb876 100644
--- a/bsp/bluetrum/libraries/hal_drivers/drv_rtc.c
+++ b/bsp/bluetrum/libraries/hal_drivers/drv_rtc.c
@@ -11,7 +11,6 @@
  */
 
 #include "board.h"
-#include <time.h>
 #include <sys/time.h>
 
 #ifdef BSP_USING_ONCHIP_RTC
diff --git a/bsp/ck802/libraries/include/drv_rtc.h b/bsp/ck802/libraries/include/drv_rtc.h
index 182b3df843384f58f13c1572e070fcbfb69a67d0..b393f13fdaae25f55a0efbade88467dd1f7c877a 100644
--- a/bsp/ck802/libraries/include/drv_rtc.h
+++ b/bsp/ck802/libraries/include/drv_rtc.h
@@ -29,7 +29,7 @@ extern "C" {
 
 #include <stdint.h>
 #include <drv_common.h>
-#include <time.h>
+#include <sys/time.h>
 
 /// definition for rtc handle.
 typedef void *rtc_handle_t;
diff --git a/bsp/ft2004/libraries/bsp/ft_i2c/ft_i2c_selftest.c b/bsp/ft2004/libraries/bsp/ft_i2c/ft_i2c_selftest.c
index 4a43df0ce46710ec48d64fdbc51e2dad38b8226f..4be275e9cefc56e47af3ddaeeaa355415a66aa56 100644
--- a/bsp/ft2004/libraries/bsp/ft_i2c/ft_i2c_selftest.c
+++ b/bsp/ft2004/libraries/bsp/ft_i2c/ft_i2c_selftest.c
@@ -12,7 +12,7 @@
  * ----- ------     --------    --------------------------------------
  */
 
-#include <time.h>
+#include <sys/time.h>
 #include <string.h>
 #include "ft_i2c_hw.h"
 #include "ft_i2c.h"
diff --git a/bsp/imxrt/libraries/drivers/drv_rtc.c b/bsp/imxrt/libraries/drivers/drv_rtc.c
index 96ae1006fafa6f0ad262ff063090cab392b1a7c0..d3f86c5e42860e4b9baf394162ed6c369448be03 100644
--- a/bsp/imxrt/libraries/drivers/drv_rtc.c
+++ b/bsp/imxrt/libraries/drivers/drv_rtc.c
@@ -20,7 +20,7 @@
 
 #include "drv_rtc.h"
 #include "fsl_snvs_hp.h"
-#include <time.h>
+#include <sys/time.h>
 
 #if defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL
 #error "Please don't define 'FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL'!"
diff --git a/bsp/lpc5410x/Libraries/lpc_chip/chip_common/rtc_ut.h b/bsp/lpc5410x/Libraries/lpc_chip/chip_common/rtc_ut.h
index c88ca598ae70625cc26f1b4bccc80d862bb225b6..9caffc2dd6683de8cad9b5c6b283b7567329fd73 100644
--- a/bsp/lpc5410x/Libraries/lpc_chip/chip_common/rtc_ut.h
+++ b/bsp/lpc5410x/Libraries/lpc_chip/chip_common/rtc_ut.h
@@ -36,7 +36,7 @@
 
 #include "chip.h"
 #include <stdlib.h>
-#include <time.h>
+#include <sys/time.h>
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/bsp/raspberry-pi/raspi3-64/driver/drv_rtc.h b/bsp/raspberry-pi/raspi3-64/driver/drv_rtc.h
index 4af28efa1726600861f3e1f79e65e54c7cf12af6..35ccaf39d5e3f5a9b199a8a5d883863a23f1cea7 100644
--- a/bsp/raspberry-pi/raspi3-64/driver/drv_rtc.h
+++ b/bsp/raspberry-pi/raspi3-64/driver/drv_rtc.h
@@ -13,7 +13,7 @@
 
 #include <rtthread.h>
 #include <rtdevice.h>
-#include <time.h>
+#include <sys/time.h>
 #include "bcm283x.h"
 
 struct rt_rtc_device
diff --git a/bsp/swm320-lq100/applications/main.c b/bsp/swm320-lq100/applications/main.c
index 3761e8c14d99ad8dae81c0a5ced80bbafc4935aa..5685bf67457bd75502bb105dce3fbabb013b70cf 100644
--- a/bsp/swm320-lq100/applications/main.c
+++ b/bsp/swm320-lq100/applications/main.c
@@ -169,7 +169,7 @@ MSH_CMD_EXPORT(pwm_sample, pwm sample);
 #endif
 
 #ifdef RT_USING_RTC
-#include <time.h>
+#include <sys/time.h>
 static int rtc_sample(int argc, char *argv[])
 {
     rt_err_t ret = RT_EOK;
diff --git a/bsp/swm320/applications/main.c b/bsp/swm320/applications/main.c
index 4b42c4936aad9606e86287f93afa53f307c437c0..0ebd6663f6b155b06c02b34d4d6a63ad091e6d9b 100644
--- a/bsp/swm320/applications/main.c
+++ b/bsp/swm320/applications/main.c
@@ -169,7 +169,7 @@ MSH_CMD_EXPORT(pwm_sample, pwm sample);
 #endif
 
 #ifdef RT_USING_RTC
-#include <time.h>
+#include <sys/time.h>
 static int rtc_sample(int argc, char *argv[])
 {
     rt_err_t ret = RT_EOK;
diff --git a/components/drivers/include/drivers/alarm.h b/components/drivers/include/drivers/alarm.h
index 11637df949d94938896cb652c4bec4236601d36e..56822b72e1bcd0a4d887ecacaf3bb1ce867982e2 100644
--- a/components/drivers/include/drivers/alarm.h
+++ b/components/drivers/include/drivers/alarm.h
@@ -13,7 +13,8 @@
 #ifndef __ALARM_H__
 #define __ALARM_H__
 
-#include <time.h>
+#include <sys/time.h>
+#include <rtdef.h>
 
 #define RT_ALARM_TM_NOW        -1    /* set the alarm tm_day,tm_mon,tm_sec,etc.
                                         to now.we also call it "don't care" value */
diff --git a/components/drivers/rtc/rtc.c b/components/drivers/rtc/rtc.c
index 0658d2aaf4c2129805980c3b0aa6a114c525f981..39f82499f5098c2204a9fd867245daba58d65685 100644
--- a/components/drivers/rtc/rtc.c
+++ b/components/drivers/rtc/rtc.c
@@ -14,7 +14,7 @@
  * 2021-07-30     Meco Man     move rtc_core.c to rtc.c
  */
 
-#include <time.h>
+#include <sys/time.h>
 #include <string.h>
 #include <stdlib.h>
 #include <rtthread.h>
diff --git a/examples/kernel/event_simple.c b/examples/kernel/event_simple.c
index 8b2f966d3dc12eb081db42fb3eb5b35f31a12111..78887b6aea845f25629e3204bb7614699d2c68ce 100644
--- a/examples/kernel/event_simple.c
+++ b/examples/kernel/event_simple.c
@@ -15,7 +15,7 @@
  * 一个线程定时发送事件 (事件5)
  */
 #include <rtthread.h>
-#include <time.h>
+#include <sys/time.h>
 #include "tc_comm.h"
 
 /* 指向线程控制块的指针 */