How to set the correct timezone on CentOS?
Jul 17, 2025 am 12:14 AM
If the CentOS server time logging error or the scheduled task execution time is abnormal, it may be a time zone setting problem. 1. Use timedatectl to view the current time zone; 2. List all available time zones through timedatectl list-timezones; 3. Select the appropriate time zone and use sudo timedatectl set-timezone Your/Timezone settings. After completion, it is recommended to check to confirm that the changes take effect, and note that some applications may need to restart to apply the new time zone settings.
If your CentOS server isn't logging events in the right time or scheduled tasks are running at unexpected hours, chances are you're dealing with a timezone issue. Fixing it is straightforward—once you know how.
Check Current Timezone Setting
Before changing anything, it's best to confirm what timezone your system is currently using. Run this command:
timedatectl
Look for the line that says Time zone . It might show something like UTC or America/New_York . If it's not what you expect, you'll want to change it.
You can also use this shorter command if you only need the timezone name:
timedatectl | grep "Time zone"
This helps avoid confusion, especially when troubleshooting logs or cron jobs.
List Available Timezones
CentOS comes with a list of predefined timezones. To see them all, run:
timedatectl list-timezones
That will give you a long list. You can scroll through or pipe it to less for easier browser:
timedatectl list-timezones | less
Common ones include:
-
America/New_York -
Europe/London -
Asia/Tokyo
Find the one that matches your location or your preferred time reference.
Set the Correct Timezone
Once you've identified the correct timezone, set it using the following command:
sudo timedatectl set-timezone Your/Timezone
For example:
sudo timedatectl set-timezone America/Chicago
After running that, check again with timedatectl to make sure the change took effect. The system time and RTC (real-time clock) should now reflect local time properly, depending on your configuration.
Also, keep in mind that some applications may cache timezone settings, so a restart or reload might be necessary for full effect.
That's basically it. Not complicated, but often overlooked.
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