diff --git a/include/common/ttime.h b/include/common/ttime.h
index 65bb763b1f..1ffcc29eca 100644
--- a/include/common/ttime.h
+++ b/include/common/ttime.h
@@ -62,7 +62,8 @@ static FORCE_INLINE int64_t taosGetTimestampToday(int32_t precision) {
   int64_t   factor = (precision == TSDB_TIME_PRECISION_MILLI)   ? 1000
                      : (precision == TSDB_TIME_PRECISION_MICRO) ? 1000000
                                                                 : 1000000000;
-  time_t    t = taosTime(NULL);
+  time_t    t;
+  (void) taosTime(&t);
   struct tm tm;
   (void) taosLocalTime(&t, &tm, NULL, 0);
   tm.tm_hour = 0;
diff --git a/include/os/osTime.h b/include/os/osTime.h
index 5d74146e9c..7a65efe28d 100644
--- a/include/os/osTime.h
+++ b/include/os/osTime.h
@@ -93,7 +93,7 @@ static FORCE_INLINE int64_t taosGetMonoTimestampMs() {
 char      *taosStrpTime(const char *buf, const char *fmt, struct tm *tm);
 struct tm *taosLocalTime(const time_t *timep, struct tm *result, char *buf, int32_t bufSize);
 struct tm *taosLocalTimeNolock(struct tm *result, const time_t *timep, int dst);
-time_t     taosTime(time_t *t);
+int32_t    taosTime(time_t *t);
 time_t     taosMktime(struct tm *timep);
 int64_t    user_mktime64(const uint32_t year, const uint32_t mon, const uint32_t day, const uint32_t hour,
                          const uint32_t min, const uint32_t sec, int64_t time_zone);
diff --git a/source/common/src/ttime.c b/source/common/src/ttime.c
index 75624593d9..ecdb3de9a2 100644
--- a/source/common/src/ttime.c
+++ b/source/common/src/ttime.c
@@ -30,7 +30,7 @@ static int64_t m_deltaUtc = 0;
 
 void deltaToUtcInitOnce() {
   struct tm tm = {0};
-  if (taosStrpTime("1970-01-01 00:00:00", (const char*)("%Y-%m-%d %H:%M:%S"), &tm) != 0) {
+  if (taosStrpTime("1970-01-01 00:00:00", (const char*)("%Y-%m-%d %H:%M:%S"), &tm) == NULL) {
     uError("failed to parse time string");
   }
   m_deltaUtc = (int64_t)taosMktime(&tm);
diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index 552933dcad..b369ee794c 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -188,7 +188,11 @@ static int32_t countTrailingSpaces(const SValueNode* pVal, bool isLtrim) {
 
 static int32_t addTimezoneParam(SNodeList* pList) {
   char      buf[TD_TIME_STR_LEN] = {0};
-  time_t    t = taosTime(NULL);
+  time_t    t;
+  int32_t code = taosTime(&t);
+  if (code != 0) {
+    return code;
+  }
   struct tm tmInfo;
   if (taosLocalTime(&t, &tmInfo, buf, sizeof(buf)) != NULL) {
     (void)strftime(buf, sizeof(buf), "%z", &tmInfo);
@@ -196,7 +200,7 @@ static int32_t addTimezoneParam(SNodeList* pList) {
   int32_t len = (int32_t)strlen(buf);
 
   SValueNode* pVal = NULL;
-  int32_t code = nodesMakeNode(QUERY_NODE_VALUE, (SNode**)&pVal);
+  code = nodesMakeNode(QUERY_NODE_VALUE, (SNode**)&pVal);
   if (pVal == NULL) {
     return code;
   }
diff --git a/source/libs/parser/src/parInsertSql.c b/source/libs/parser/src/parInsertSql.c
index 4b91f01a8c..750621bf66 100644
--- a/source/libs/parser/src/parInsertSql.c
+++ b/source/libs/parser/src/parInsertSql.c
@@ -246,7 +246,7 @@ static int32_t parseBoundColumns(SInsertParseContext* pCxt, const char** pSql, E
   return code;
 }
 
-static int parseTimestampOrInterval(const char** end, SToken* pToken, int16_t timePrec, int64_t* ts, int64_t* interval,
+static int32_t parseTimestampOrInterval(const char** end, SToken* pToken, int16_t timePrec, int64_t* ts, int64_t* interval,
                                     SMsgBuf* pMsgBuf, bool* isTs) {
   if (pToken->type == TK_NOW) {
     *isTs = true;
diff --git a/source/os/src/osTime.c b/source/os/src/osTime.c
index d4d9936154..60339fc646 100644
--- a/source/os/src/osTime.c
+++ b/source/os/src/osTime.c
@@ -81,6 +81,7 @@ static const char *am_pm[2] = {"AM", "PM"};
 #endif
 
 char *taosStrpTime(const char *buf, const char *fmt, struct tm *tm) {
+  if (!buf || !fmt || !tm) return NULL;
 #ifdef WINDOWS
   char        c;
   const char *bp;
@@ -345,6 +346,9 @@ char *taosStrpTime(const char *buf, const char *fmt, struct tm *tm) {
 }
 
 int32_t taosGetTimeOfDay(struct timeval *tv) {
+  if (tv == NULL) {
+    return TSDB_CODE_INVALID_PARA;
+  }
   int32_t code = 0;
 #ifdef WINDOWS
   LARGE_INTEGER t;
@@ -365,12 +369,15 @@ int32_t taosGetTimeOfDay(struct timeval *tv) {
 #endif
 }
 
-time_t taosTime(time_t *t) { 
+int32_t taosTime(time_t *t) {
+  if (t == NULL) {
+    return TSDB_CODE_INVALID_PARA;
+  }
   time_t r = time(t); 
   if (r == (time_t)-1) {
-    terrno = TAOS_SYSTEM_ERROR(errno);
+    return TAOS_SYSTEM_ERROR(errno);
   }
-  return r;
+  return 0;
 }
 
 /*
diff --git a/source/util/src/tlog.c b/source/util/src/tlog.c
index 76d0139521..f70b145dbc 100644
--- a/source/util/src/tlog.c
+++ b/source/util/src/tlog.c
@@ -154,16 +154,26 @@ static int32_t taosStartLog() {
   return 0;
 }
 
-static void getDay(char *buf, int32_t bufSize) {
-  time_t    t = taosTime(NULL);
+static int32_t getDay(char *buf, int32_t bufSize) {
+  time_t    t;
+  int32_t code = taosTime(&t);
+  if(code != 0) {
+    return code;
+  }
   struct tm tmInfo;
   if (taosLocalTime(&t, &tmInfo, buf, bufSize) != NULL) {
     TAOS_UNUSED(strftime(buf, bufSize, "%Y-%m-%d", &tmInfo));
   }
+  return 0;
 }
 
 static int64_t getTimestampToday() {
-  time_t    t = taosTime(NULL);
+  time_t    t;
+  int32_t code = taosTime(&t);
+  if (code != 0) {
+    uError("failed to get time, reason:%s", tstrerror(code));
+    return 0;
+  }
   struct tm tm;
   if (taosLocalTime(&t, &tm, NULL, 0) == NULL) {
     return 0;
@@ -203,7 +213,11 @@ int32_t taosInitSlowLog() {
 
   char name[PATH_MAX + TD_TIME_STR_LEN] = {0};
   char day[TD_TIME_STR_LEN] = {0};
-  getDay(day, sizeof(day));
+  int32_t code = getDay(day, sizeof(day));
+  if (code != 0) {
+    (void)printf("failed to get day, reason:%s\n", tstrerror(code));
+    return code;
+  }
   (void)snprintf(name, PATH_MAX + TD_TIME_STR_LEN, "%s.%s", tsLogObj.slowLogName, day);
 
   tsLogObj.timestampToday = getTimestampToday();
@@ -434,7 +448,12 @@ static void taosOpenNewSlowLogFile() {
   atomic_store_32(&tsLogObj.slowHandle->lock, 0);
 
   char day[TD_TIME_STR_LEN] = {0};
-  getDay(day, sizeof(day));
+  int32_t code = getDay(day, sizeof(day));
+  if (code != 0) {
+    uError("failed to get day, reason:%s", tstrerror(code));
+    (void)taosThreadMutexUnlock(&tsLogObj.logMutex);
+    return;
+  }
   TdFilePtr pFile = NULL;
   char      name[PATH_MAX + TD_TIME_STR_LEN] = {0};
   (void)snprintf(name, PATH_MAX + TD_TIME_STR_LEN, "%s.%s", tsLogObj.slowLogName, day);