SQL 报错时区无法解析

The server time_zone 'GMT+8:00' cannot be parsed：
The server time_zone 'GMT+8:00' cannot be parsed. The server time zone must defined in the jdbc url string with the 'serverTimezone' parameter (or server time zone must be defined explicitly with sessionVariables=time_zone='Canada/Atlantic' for example).  See java.util.TimeZone#getAvailableIDs() for available TimeZone, depending on your JRE implementation.

+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| time_zone     | +8:00 |
+---------------+-------+

obclient > set global time_zone='+08:00';