Linux Systemzeit Synchronisation mit Network Time Protocol und Zeitzoneneinstellungen festlegen und abfragen

How to Set Date and Time on Linux

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Change Time and Date on RHEL/CentOS and Fedora

This post shows how to set the time and date in the command line on RHEL/CentOS 8 and Fedora 30. The correct system time is essential for systems and creates the prerequisite for the proper functioning of many service. The command line tool timedatectl use to check and modify time setting.

Run the query using timedatectl without additional arguments:

$ timedatectl
               Local time: Wed 2021-02-17 17:04:29 GMT
           Universal time: Wed 2021-02-17 17:04:29 UTC
                 RTC time: Wed 2021-02-17 16:57:58
                Time zone: Europe/London (GMT, +0000)
System clock synchronized: yes
              NTP service: active
          RTC in local TZ: n

To set-time switch along with the format of time in HH:MM:SS (Hour, Minute, and Seconds):

$ timedatectl set-time 14:09:0

To set-time switch along with the format of date in YY:MM:DD (Year, Month, Day):

$ timedatectl set-time 2021-02-1

To set both date and time:

$ timedatectl "2021-02-18 14:09:05"

Find out if your hardware clock is set to local timezone:

$ timedatectl | grep loca

Set your hardware clock to local timezone:

$ timedatectl set-local-rtc

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