有人知道MySQL中有没有这样的函数吗?
更新
这不会输出任何有效的信息:
mysql> SELECT @@global.time_zone, @@session.time_zone;
+--------------------+---------------------+
| @@global.time_zone | @@session.time_zone |
+--------------------+---------------------+
| SYSTEM | SYSTEM |
+--------------------+---------------------+
或者MySQL本身不能确切地知道所使用的time_zone，这很好，我们可以在这里涉及PHP，只要我能得到有效的信息，而不是像SYSTEM…
当前回答
查看MySQL服务器时区支持和system_time_zone系统变量。这有用吗?
其他回答
Use LPAD(TIME_FORMAT(TIMEDIFF(NOW(), UTC_TIMESTAMP),’%H:%i’),6,’+') to get a value in MySQL's timezone format that you can conveniently use with CONVERT_TZ(). Note that the timezone offset you get is only valid at the moment in time where the expression is evaluated since the offset may change over time if you have daylight savings time. Yet the expression is useful together with NOW() to store the offset with the local time, which disambiguates what NOW() yields. (In DST timezones, NOW() jumps back one hour once a year, thus has some duplicate values for distinct points in time).
任何人来查找mysql数据库的时区。
通过这个查询，你可以得到当前的时区:
mysql> SELECT @@system_time_zone as tz;
+-------+
| tz |
+-------+
| CET |
+-------+
查看MySQL服务器时区支持和system_time_zone系统变量。这有用吗?
你可以尝试以下方法:
select sec_to_time(TIME_TO_SEC( curtime()) + 48000);
在这里，您可以将时差指定为秒
要获取mysql的当前时区，你可以做以下事情:
SELECT @@system_time_zone; # from this you can get the system timezone
SELECT IF(@@session.time_zone = 'SYSTEM', @@system_time_zone, @@session.time_zone) # This will give you time zone if system timezone is different from global timezone
现在如果你想改变mysql时区，那么:
SET GLOBAL time_zone = '+00:00'; # this will set mysql timezone in UTC
SET @@session.time_zone = "+00:00"; # by this you can chnage the timezone only for your particular session
