Time zone

Check the current time zone

$ date
Fri Apr 17 11:51:41 UTC 2020

Specifiable time zone

Files under / usr / share / zoneinfo /. For directory structure Region A / Region B. For example, in the case of Tokyo, ʻAsia / Tokyo`.

Change time zone

Temporarily changed by environment variable

$ export TZ="Asia/Tokyo"; date
Fri Apr 17 20:53:49 JST 2020

Permanently changed

Copy the files under / usr / share / zoneinfo to / etc / localtime, or make a symbolic link.

cp /usr/share/zoneinfo/Asia/Tokyo /etc/localtime

ln -s /usr/share/zoneinfo/Asia/Tokyo /etc/localtime

For CentOS

Use timedatectl.

$ timedatectl set-timezone Asia/Tokyo

$ timedatectl status

reference

https://eng-entrance.com/linux-time-timezone