date -s "2017-08-10 17:00:00"
clock -w
修改时区：
方法一：
ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
[root@localhost share]# ll /etc/localtime
lrwxrwxrwx. 1 root root 35 1月 24 2017 /etc/localtime -> ../usr/share/zoneinfo/Asia/Shanghai
方法二：
timedatectl set-timezone Asia/Shanghai
timedatectl set-time "2017-08-14 17:27:30"
[root@localhost share]# date -R
Mon, 14 Aug 2017 17:27:35 +0800
