convert_tz
description
Syntax
DATETIME CONVERT_TZ(DATETIME dt, VARCHAR from_tz, VARCHAR to_tz)
转换datetime值，从 from_tz 给定时区转到 to_tz 给定时区，并返回结果值。 如果参数无效该函数返回NULL。
Example
mysql> select convert_tz('2019-08-01 13:21:03', 'Asia/Shanghai', 'America/Los_Angeles');
+---------------------------------------------------------------------------+
| convert_tz('2019-08-01 13:21:03', 'Asia/Shanghai', 'America/Los_Angeles') |
+---------------------------------------------------------------------------+
| 2019-07-31 22:21:03 |
+---------------------------------------------------------------------------+
mysql> select convert_tz('2019-08-01 13:21:03', '+08:00', 'America/Los_Angeles');
+--------------------------------------------------------------------+
| convert_tz('2019-08-01 13:21:03', '+08:00', 'America/Los_Angeles') |
+--------------------------------------------------------------------+
| 2019-07-31 22:21:03 |
+--------------------------------------------------------------------+keywords
CONVERT_TZ