CentOS 7 Set time command Timedatectl usage example

In the new CENTOS7, the instruction on time adds a unified command Timedatactl, in addition to keeping the date, Hwclock, and other commands commonly used in previous versions. Below is a summary of the following in conjunction with its usage.

View TIMEDATECTL instruction Usage Help

The code is as follows

Copy Code

[Root@361way ~]# Timedatectl--help Timedatectl [OPTIONS ...] COMMAND ... Query or change the system time and date settings. -H--help Show this Help --version Show Package version --adjust-system-clock Adjust system clock When changing local RTC mode --no-pager don't pipe output into a pager -P--privileged acquire privileges before execution --no-ask-password don't prompt for password -H--host=[user@]host Operate on remote host Commands: Status Show Current time settings Set-time Time Set system time Set-timezone ZONE Set System timezone List-timezones Show known TimeZones SET-LOCAL-RTC Boolean Control whether RTC SET-NTP BOOL Control whether NTP is enabled

More detailed help information can also be viewed through the man timedatectl.

View current settings, direct input timedatectl equivalent to TIMEDATECTL status

code is as follows	copy code
[root@361way ~] # timedatectl       local time:wed 2014-09-24 21:19:26 CST   Universal time:wed 20 14-09-24 13:19:26 UTC         RTC time:wed 2014-09-24 13:19:26          Timezone:asia/shanghai (CST, +0800)      NTP Enabled:yes NTP synchronized:yes  RTC in local tz:no       DST active:n/a

Set Date

Timedatectl set-time yyyy-mm-dd
Set current time

Timedatectl set-time HH:MM:SS
Default, when the system is in use UTC , you can turn UTC time on and off by using the following command:

Timedatectl SET-LOCAL-RTC Boolean
Substituting Boolean for Yes to use local time, replace with no to indicate UTC time

Note: This Boolean value can also be used to set the time zone with true, Flase

:

To view all time zones:

Timedatectl list-timezones
To set the time zone under the command:

Timedatectl set-timezone time_zone
Remote NTP server synchronization

Timedatectl can also set whether to turn on NTP options

Timedatectl set-ntp Boolean
The Boolean here is yes or no

In addition to the above usage, TIMEDATECTL also supports the time setting of a remote host through the-H parameter.