Centos修改系统时间

示例：

[root@localhost ~]# time

real    0m0.000s
user    0m0.000s
sys     0m0.000s
[root@localhost ~]# date
Thu Aug 23 02:06:48 CST 2018
[root@localhost ~]# date -s 180822
Wed Aug 22 00:00:00 CST 2018
[root@localhost ~]# date -s 19:12:30
Wed Aug 22 19:12:30 CST 2018
[root@localhost ~]# clock -w
[root@localhost ~]# date
Wed Aug 22 19:12:47 CST 2018
[root@localhost ~]# cat /etc/redhat-release
CentOS release 6.5 (Final)
[root@localhost ~]#