diff --git a/a8/sysutils.cc b/a8/sysutils.cc
index 14e2243..9be7dbe 100644
--- a/a8/sysutils.cc
+++ b/a8/sysutils.cc
@@ -173,6 +173,36 @@ namespace a8
         return std::string(buff);
     }
 
+    std::string TimestampToDateTime(time_t time_val)
+    {
+        std::string datetime_str;
+        {
+            time_t nowtime = time;
+            struct tm tm_time = {0};
+            localtime_r(&nowtime, &tm_time);
+
+            char buff[256];
+            strftime(buff, a8::ArraySize(buff), "%F %T", &tm_time);
+            datetime_str.append((char*)buff);
+        }
+        return datetime_str;
+    }
+
+    std::string TimestampToDate(time_t time_val)
+    {
+        std::string datetime_str;
+        {
+            time_t nowtime = time;
+            struct tm tm_time = {0};
+            localtime_r(&nowtime, &tm_time);
+
+            char buff[256];
+            strftime(buff, a8::ArraySize(buff), "%F", &tm_time);
+            datetime_str.append((char*)buff);
+        }
+        return datetime_str;
+    }
+
     time_t GetDaySeconds(time_t time_val, int incdays)
     {
         int g_time_zone = 8;
diff --git a/a8/sysutils.h b/a8/sysutils.h
index 72befc2..0ace7a6 100644
--- a/a8/sysutils.h
+++ b/a8/sysutils.h
@@ -77,6 +77,8 @@ namespace a8
     std::string GetIpAddress(unsigned long ip_saddr);
 
     std::string FormatDateTime(time_t time_val);
+    std::string TimestampToDateTime(time_t time_val);
+    std::string TimestampToDate(time_t time_val);
     time_t GetDaySeconds(time_t time_val, int incdays = 0);
     time_t BetweenDays(time_t time_val1, time_t time_val2);
     time_t GetDateTimeSeconds(const char* datetime_str);