一：通过sql命令临时修改
--查看数据库时区设置
mysql> show variables like "%time_zone%";
+------------------+--------+
| Variable_name | Value |
+------------------+--------+
| system_time_zone | UTC |
| time_zone | SYSTEM |
+------------------+--------+
--修改当前会话时区，退出msql后 time_zone 会恢复成修改前的值
mysql> set time_zone = '+8:00';
Query OK, 0 rows affected (0.00 sec)
mysql> show variables like "%time_zone%";
+------------------+--------+
| Variable_name | Value |
+------------------+--------+
| system_time_zone | UTC |
| time_zone | +08:00 |
+------------------+--------+
—-修改全局会话时区
mysql> set global time_zone = '+8:00';
mysql> set time_zone = '+8:00';
mysql> flush privileges;
二：修改my.cnf实现永久修改
vi /etc/mysql/my.cnf
然后在mysqld下边的配置中添加一行：
default-time_zone = '+8:00'
然后重启mysql
service mysql restart
