一 查看当前时区
root@node01:~# timedatectl
Local time: Wed 2021-11-03 08:43:55 UTC
Universal time: Wed 2021-11-03 08:43:55 UTC
RTC time: Wed 2021-11-03 08:43:55
Time zone: Etc/UTC (UTC, +0000)
System clock synchronized: yes
NTP service: active
RTC in local TZ: no
二 选择时区
# tzselect
Please identify a location so that time zone rules can be set correctly.
Please select a continent, ocean, "coord", or "TZ".
1) Africa
2) Americas
3) Antarctica
4) Asia
5) Atlantic Ocean
6) Australia
7) Europe
8) Indian Ocean
9) Pacific Ocean
10) coord - I want to use geographical coordinates.
11) TZ - I want to specify the timezone using the Posix TZ format.
#? 4
Please select a country whose clocks agree with yours.
1) Afghanistan 14) Hong Kong 27) Laos 40) Saudi Arabia
2) Antarctica 15) India 28) Lebanon 41) Singapore
3) Armenia 16) Indonesia 29) Macau 42) Sri Lanka
4) Azerbaijan 17) Iran 30) Malaysia 43) Syria
5) Bahrain 18) Iraq 31) Mongolia 44) Taiwan
6) Bangladesh 19) Israel 32) Myanmar (Burma) 45) Tajikistan
7) Bhutan 20) Japan 33) Nepal 46) Thailand
8) Brunei 21) Jordan 34) Oman 47) Turkmenistan
9) Cambodia 22) Kazakhstan 35) Pakistan 48) United Arab Emirates
10) China 23) Korea (North) 36) Palestine 49) Uzbekistan
11) Cyprus 24) Korea (South) 37) Philippines 50) Vietnam
12) East Timor 25) Kuwait 38) Qatar 51) Yemen
13) Georgia 26) Kyrgyzstan 39) Russia
#? 10
Please select one of the following timezones.
1) Beijing Time
2) Xinjiang Time
#? 1
The following information has been given:
China
Beijing Time
Therefore TZ='Asia/Shanghai' will be used.
Selected time is now: Wed Nov 3 16:45:29 CST 2021.
Universal Time is now: Wed Nov 3 08:45:29 UTC 2021.
Is the above information OK?
1) Yes
2) No
#? 1
You can make this change permanent for yourself by appending the line
TZ='Asia/Shanghai'; export TZ
to the file '.profile' in your home directory; then log out and log in again.
Here is that TZ value again, this time on standard output so that you
can use the /usr/bin/tzselect command in shell scripts:
Asia/Shanghai
三 创建软连接
root@node01:~# ln -svf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
'/etc/localtime' -> '/usr/share/zoneinfo/Asia/Shanghai'
四 验证当前时区
root@node01:~# timedatectl
Local time: Wed 2021-11-03 16:49:50 CST
Universal time: Wed 2021-11-03 08:49:50 UTC
RTC time: Wed 2021-11-03 08:49:50
Time zone: Asia/Shanghai (CST, +0800)
System clock synchronized: yes
NTP service: active
RTC in local TZ: no
五 修改时间为24小时制
root@node01:~# echo "LC_TIME=en_DK.UTF-8" >> /etc/default/locale
六 验证时间格式
root@node01:~# reboot
root@node01:~# date
Wed Nov 3 17:15:30 CST 2021
timedatectl
# timedatectl set-timezone Asia/Shanghai
