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
尝试使用以下代码:
//ASP CLASSIC
Set dbdate = Server.CreateObject("ADODB.Recordset")
dbdate.ActiveConnection = MM_connection
dbdate.Source = "SELECT NOW() AS currentserverdate "
dbdate.Open()
currentdate = dbdate.Fields("currentserverdate").Value
response.Write("Server Time is "¤tdate)
dbdate.Close()
Set dbdate = Nothing
其他回答
简单的 选择@@system_time_zone;
返回PST(或与您的系统相关的任何值)。
如果你试图确定会话时区，你可以使用这个查询: 选择如果(@@session。time_zone = 'SYSTEM'， @@system_time_zone， @@session.time_zone);
如果会话时区与系统时区不同，将返回会话时区。
下面的查询返回当前会话的时区。
select timediff(now(),convert_tz(now(),@@session.time_zone,'+00:00'));
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).
如果需要将GMT差值作为整数:
SELECT EXTRACT(HOUR FROM (TIMEDIFF(NOW(), UTC_TIMESTAMP))) AS `timezone`
尝试使用以下代码:
//ASP CLASSIC
Set dbdate = Server.CreateObject("ADODB.Recordset")
dbdate.ActiveConnection = MM_connection
dbdate.Source = "SELECT NOW() AS currentserverdate "
dbdate.Open()
currentdate = dbdate.Fields("currentserverdate").Value
response.Write("Server Time is "¤tdate)
dbdate.Close()
Set dbdate = Nothing
