diff --git a/model.py b/model.py
index 5ab0850..b5d2c34 100644
--- a/model.py
+++ b/model.py
@@ -7,10 +7,10 @@ mysql_db = MySQLDatabase(
 
 
 def add_record(execution_datetime,server, speed):
-    execution_datetime_timestamp = execution_datetime.strftime("%Y-%m-%d %H:%M:%S")
+    execution_datetime_utc = execution_datetime-datetime.timedelta(hours=8)#转换为UTC时间。
     # print(now_timestamp)
     mysql_db.execute_sql(
         'insert into vps_download_speed(server,speed,datetime) values("{server}",{speed},"{datetime}")'.format(
-            server=server, speed=speed, datetime=execution_datetime_timestamp
+            server=server, speed=speed, datetime=execution_datetime_utc
         )
     )