Linux Timezone settings

由於業務需求，服務器會內在不同的地區，先在這裡簡單介紹更改時區的問題。
日後會補充美國夏令及冬令時區轉換的問題。



CentOS 7

$ date
$ ls -l /etc/localtime

# timedatectl list-timezones
##*** Grep possible Asian timezones ***##
# timedatectl list-timezones | grep Asia

The syntax is as follows to set timezone and need to run as root user:

# timedatectl set-timezone time_zone

In this example, set timezone to America/Chicago

# timedatectl set-timezone America/Chicago

Change the current timezone in CentOS 6 and older

Type the following commands as root:

cp /etc/localtime /root/old.timezone rm /etc/localtime ln -s /usr/share/zoneinfo/America/Chicago /etc/localtime

Verify new settings by typing the following two commands:

date ls -l /etc/localtime

Ref :
https://www.cyberciti.biz/faq/centos-linux-6-7-changing-timezone-command-line/