https://it.cha138.com/ios/show-2111524.html
[root@localhost ~]# date
Fri Apr 14 23:26:05 EDT 2006 //EDT (美国)东区时区
[root@localhost ~]# date -s 2011/9/30
Fri Sep 30 00:00:00 EDT 2011
[root@localhost ~]# date -s 14:18
Fri Sep 30 14:18:00 EDT 2011
[root@localhost ~]# date
Fri Sep 30 14:18:01 EDT 2011
[root@localhost ~]# hwclock -w
/usr/share/zoneinfo/Asia/ 下保存着系统各个时区信息
/etc/localtime 保存当前系统时区及时间信息
[root@localhost ~]# cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
cp: overwrite `/etc/localtime’? y
[root@localhost ~]# date
Sat Oct 1 02:20:03 CST 2011 //更改为CST
[root@localhost ~]# date -R
Sat, 01 Oct 2011 02:21:45 +0800
然后重新设置下时间即可。