Linux Tutorials - Herong's Tutorial Examples - v5.44, by Herong Yang
Reset Timezone on Linux Systems
This section provides a tutorial example on how to view and change timezone settings on Linux systems using the 'timedatectl' command.
After installing a new Linux system, you want to check and reset its timezone to match the local time.
1. View the current timezone using the "timedatectl" command.
herong$ timedatectl Local time: Sat 2020-10-10 04:16:49 EST Universal time: Sat 2020-10-10 09:16:49 UTC RTC time: Sat 2020-10-10 05:16:49 Time zone: America/New_York (EST, -0500) System clock synchronized: yes NTP service: active RTC in local TZ: yes Warning: The system is configured to read the RTC time in the local time zone. This mode cannot be fully supported. It will create various problems with time zone changes and daylight saving time adjustments. The RTC time is never updated, it relies on external facilities to maintain it. If at all possible, use RTC in UTC by calling 'timedatectl set-local-rtc 0'.
2. Reset timezone to Paris:
herong$ timedatectl list-timezones | grep Paris Europe/Paris herong$ sudo timedatectl set-timezone Europe/Paris
3. Reset the RTC (Real Time Clock) in UTC (Coordinated Universal Time). As shown in the above warning message, setting RTC in local timezone may cause problems.
herong$ sudo timedatectl set-local-rtc 0 herong$ timedatectl Local time: Sat 2020-10-09 10:16:49 CET Universal time: Sat 2020-10-10 09:16:49 UTC RTC time: Sat 2020-10-10 09:16:49 Time zone: Europe/Paris (CET, +0100) System clock synchronized: yes NTP service: active RTC in local TZ: no
Table of Contents
Cockpit - Web Portal for Administrator
Install CentOS from Bootable USB
Install CentOS by Deleting Existing Partition
►Reset Timezone on Linux Systems
Reset Host Name on Linux Systems
SELinux - Security-Enhanced Linux
SSH Protocol and ssh/scp Commands
Software Package Manager on CentOS - DNF and YUM
vsftpd - Very Secure FTP Daemon