更改mysql时区

2024-07-24 12:32:24

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需要查看mysql的当前时区,用time_zone参数

mysql> show global variables like '%zone%';

+------------------+--------+

| Variable_name    | Value |

+------------------+--------+

| system_time_zone | CST    |      ---系统时间，北京时间

| time_zone        | SYSTEM |       ----mysql所用的时区，这里是调用系统时区，也就是北京时间

+------------------+--------+

2 rows in set (0.17 sec)

验证下：
mysql> select now();

+---------------------+

| now()               |

+---------------------+

| 2018-11-30 17:11:55 |

+---------------------+

1 row in set (0.18 sec)

修改为utc时区

mysql> set time_zone='+0:00';

mysql> select now();

+---------------------+

| now()               |

+---------------------+

| 2018-11-30 09:12:06 |

+---------------------+

1 row in set (0.18 sec)

修改为东八区

mysql> set time_zone='+8:00';

Query OK, 0 rows affected (0.24 sec)

mysql> select now();

+---------------------+

| now()               |

+---------------------+

| 2018-11-30 17:21:40 |

+---------------------+

1 row in set (0.72 sec)

永久修改可以通过修改my.cnf

在 [mysqld] 之下加

default-time-zone=timezone

来修改时区。如：

default-time-zone = '+8:00'

修改完了记得记得重启msyql

注意一定要在 [mysqld] 之下加，否则会出现 unknown variable 'default-time-zone=+8:00'

注意：时区这个对timestamp类型的才有影响，datetime 是没影响的，如：

mysql> select * from uc_smallfeature_sharerecords(时间戳是timestamp类型);

+------+---------------------+-------------+----------+--------+----------+

| id   | create_time         | destination | platform | userid | username |

+------+---------------------+-------------+----------+--------+----------+

| 3425 | 2018-12-25 19:42:51 | 123213      | 123      | 123    | 123      |

+------+---------------------+-------------+----------+--------+----------+

mysql> select * from uc_push_token（时间戳是datetime类型）;

+---------+-----------+-------+---------------------+---------------------+

| user_id | push_type | token | create_time         | update_time         |

+---------+-----------+-------+---------------------+---------------------+

|       1 |         0 |       | 2018-12-25 19:40:49 | 2018-12-25 19:40:49 |

+---------+-----------+-------+---------------------+---------------------+

mysql> show global variables like '%zone%';

+------------------+--------+

| Variable_name    | Value |

+------------------+--------+

| system_time_zone | UTC    |

| time_zone        | +08:00 |

+------------------+--------+

2 rows in set (0.00 sec)

mysql> set global time_zone='+0:00';

Query OK, 0 rows affected (0.00 sec)

重连查询：

mysql> select * from uc_smallfeature_sharerecords;（timestamp类型的变了）

+------+---------------------+-------------+----------+--------+----------+

| id   | create_time         | destination | platform | userid | username |

+------+---------------------+-------------+----------+--------+----------+

| 3425 | 2018-12-25 11:42:51 | 123213      | 123      | 123    | 123      |

+------+---------------------+-------------+----------+--------+----------+

1 row in set (0.00 sec)

mysql> select * from uc_push_token;（datetime类型的不会变）

+---------+-----------+-------+---------------------+---------------------+

| user_id | push_type | token | create_time         | update_time         |

+---------+-----------+-------+---------------------+---------------------+

|       1 |         0 |       | 2018-12-25 19:40:49 | 2018-12-25 19:40:49 |

+---------+-----------+-------+---------------------+---------------------+

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