diff --git a/components/libc/compilers/armlibc/sys/time.h b/components/libc/compilers/armlibc/sys/time.h
deleted file mode 100644
index bac122e183..0000000000
--- a/components/libc/compilers/armlibc/sys/time.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- */
-#ifndef _SYS_TIME_H_
-#define _SYS_TIME_H_
-
-#include <time.h>
-#include <sys/types.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifndef _TIMEVAL_DEFINED
-#define _TIMEVAL_DEFINED
-/*
- * Structure returned by gettimeofday(2) system call,
- * and used in other calls.
- */
-struct timeval {
-    long    tv_sec;     /* seconds */
-    long    tv_usec;    /* and microseconds */
-};
-#endif /* _TIMEVAL_DEFINED */
-
-#ifndef _TIMESPEC_DEFINED
-#define _TIMESPEC_DEFINED
-/*
- * Structure defined by POSIX.1b to be like a timeval.
- */
-struct timespec {
-    time_t  tv_sec;     /* seconds */
-    long    tv_nsec;    /* and nanoseconds */
-};
-#endif /* _TIMESPEC_DEFINED */ 
-
-struct timezone {
-  int tz_minuteswest;   /* minutes west of Greenwich */
-  int tz_dsttime;       /* type of dst correction */
-};
-
-int gettimeofday(struct timeval *tp, void *ignore);
-struct tm *gmtime_r(const time_t *timep, struct tm *r);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _SYS_TIME_H_ */
diff --git a/components/libc/compilers/dlib/sys/time.h b/components/libc/compilers/common/sys/time.h
similarity index 98%
rename from components/libc/compilers/dlib/sys/time.h
rename to components/libc/compilers/common/sys/time.h
index baf566936b..1d68eeafa3 100644
--- a/components/libc/compilers/dlib/sys/time.h
+++ b/components/libc/compilers/common/sys/time.h
@@ -10,7 +10,6 @@
 #define _SYS_TIME_H_
 
 #include <time.h>
-#include <sys/types.h>
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/components/libc/compilers/common/time.c b/components/libc/compilers/common/time.c
index 097faedfe5..10682ae002 100644
--- a/components/libc/compilers/common/time.c
+++ b/components/libc/compilers/common/time.c
@@ -8,7 +8,7 @@
  * 2019-08-21     zhangjun     copy from minilibc
  */
 
-#include <time.h>
+#include <sys/time.h>
 #include <rtthread.h>
 
 #if !defined (__IAR_SYSTEMS_ICC__)
@@ -213,44 +213,26 @@ char* ctime(const time_t *timep)
 
 #endif /* __IAR_SYSTEMS_ICC__ */
 
-/*
- * Structure returned by gettimeofday(2) system call,
- * and used in other calls.
- */
-struct timeval {
-    long    tv_sec;     /* seconds */
-    long    tv_usec;    /* and microseconds */
-};
-
-#ifdef RT_USING_DEVICE
 int gettimeofday(struct timeval *tp, void *ignore)
 {
-    time_t time;
+    time_t time = 0;
+#ifdef RT_USING_DEVICE
     rt_device_t device;
-
     device = rt_device_find("rtc");
     RT_ASSERT(device != RT_NULL);
-
     rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time);
     if (tp != RT_NULL)
     {
         tp->tv_sec = time;
         tp->tv_usec = 0;
     }
+#else
+    tv->tv_sec = 0;
+    tv->tv_usec = 0;
+#endif
 
     return time;
 }
-#endif
-
-#ifndef _gettimeofday
-/* Dummy function when hardware do not have RTC */
-int _gettimeofday( struct timeval *tv, void *ignore)
-{
-    tv->tv_sec = 0;  // convert to seconds
-    tv->tv_usec = 0;  // get remaining microseconds
-    return 0;  // return non-zero for error
-}
-#endif
 
 
 /**