[root@~]# timedatectl --help
timedatectl [OPTIONS...] COMMAND ...
Query or change system time and date settings.
-h --help Show this help message
--version Show package version
--no-pager Do not pipe output into a pager
--no-ask-password Do not prompt for password
-H --host=[USER@]HOST Operate on remote host
-M --machine=CONTAINER Operate on local container
--adjust-system-clock Adjust system clock when changing local RTC mode
Commands:
status Show current time settings
set-time TIME Set system time
set-timezone ZONE Set system time zone
list-timezones Show known time zones
set-local-rtc BOOL Control whether RTC is in local time
set-ntp BOOL Enable or disable network time synchronization
[root@ ~]# timedatectl set-timezone Asia/Shanghai
[root@ ~]# timedatectl status
Local time: Mon 2018-01-08 10:25:02 CST
Universal time: Mon 2018-01-08 02:25:02 UTC
RTC time: n/a
Time zone: Asia/Shanghai (CST, +0800)
System clock synchronized: yes
systemd-timesyncd.service active: yes
RTC in local TZ: no
chronyd ntpd 2个服务不能同时运行