Centos 7 修改时间问题

更改时间遇到报错处理：

[root@localhost ccj]# timedatectl set-time 2018-08-06
Failed to set time: Automatic time synchronization is enabled
[root@localhost ccj]# timedatectl set-time 15:07:47
Failed to set time: Automatic time synchronization is enabled
[root@localhost ccj]# timedatectl set-time 15:09:45
Failed to set time: Automatic time synchronization is enabled
[root@localhost ccj]# systemctl status ntp
Unit ntp.service could not be found.

[root@localhost ccj]# timedatectl set-ntp no
[root@localhost ccj]# timedatectl set-time "2018-8-6 15:13:22"
[root@localhost ccj]#  timedatectl
      Local time: 一 2018-08-06 15:13:35 PDT
  Universal time: 一 2018-08-06 22:13:35 UTC
        RTC time: 一 2018-08-06 22:13:36
       Time zone: America/Los_Angeles (PDT, -0700)
     NTP enabled: no
NTP synchronized: no
 RTC in local TZ: no
      DST active: yes
 Last DST change: DST began at
                  日 2018-03-11 01:59:59 PST
                  日 2018-03-11 03:00:00 PDT
 Next DST change: DST ends (the clock jumps one hour backwards) at
                  日 2018-11-04 01:59:59 PDT
                  日 2018-11-04 01:00:00 PST