原地址：http://blog.csdn.net/mchdba/article/details/9763521

首先需要查看mysql的當前時區,用time_zone參數

1. mysql> show variables like ‘%time_zone%‘;
2. +------------------+--------+
3. | Variable_name | Value |
4. +------------------+--------+
5. | system_time_zone | CST |
6. | time_zone | SYSTEM |
7. +------------------+--------+
8. 2 rows in set (0.00 sec)

1 可以通過修改my.cnf
在 [mysqld] 之下加
default-time-zone=timezone
來修改時區。如：
default-time-zone = ‘+8:00‘
修改完了記得記得重啟msyql
註意一定要在 [mysqld] 之下加 ，否則會出現 unknown variable ‘default-time-zone=+8:00‘

2 另外也可以通過命令行在線修改

1. set time_zone = timezone
2. 比如北京時間（GMT+0800）
3. set time_zone = ‘+8:00‘; 如下:
4. mysql> set time_zone=‘+8:00‘;
5. Query OK, 0 rows affected (0.00 sec)
7. mysql> show variables like ‘%time_zone%‘;
8. +------------------+--------+
9. | Variable_name | Value |
10. +------------------+--------+
11. | system_time_zone | CST |
12. | time_zone | +08:00 |
13. +------------------+--------+
14. 2 rows in set (0.00 sec)

3 再通過select now()來驗證時區

1. mysql> show variables like ‘%time_zone%‘;
2. +------------------+--------+
3. | Variable_name | Value |
4. +------------------+--------+
5. | system_time_zone | CST |
6. | <span style="color:#3366ff;">time_zone | +08:00 </span>|
7. +------------------+--------+
8. 2 rows in set (0.00 sec)
10. mysql> select now();
11. +---------------------+
12. | now() |
13. +---------------------+
14. | <span style="color:#3333ff;">2013-08-05 10:35:31 </span>|
15. +---------------------+
16. 1 row in set (0.00 sec)
18. mysql> <span style="color:#ff0000;">set </span><span style="color:#ff0000;">time_zone=‘+0:00‘;
19. </span>Query OK, 0 rows affected (0.00 sec)

1. mysql> show variables like ‘%time_zone%‘;
2. +------------------+--------+
3. | Variable_name | Value |
4. +------------------+--------+
5. | system_time_zone | CST |
6. |<span style="color:#ff0000;"> time_zone | +00:00 </span>|
7. +------------------+--------+
8. 2 rows in set (0.00 sec)

1. mysql> select now();
2. +---------------------+
3. | now() |
4. +---------------------+
5. | <span style="color:#ff0000;">2013-08-05 02:35:43 </span>|
6. +---------------------+
7. 1 row in set (0.00 sec)

修改MySQL的時區，涉及參數time_zone