查看当前时间
$ date
Tue 01 Mar 2022 04:07:57 AM UTC
从输出中可以看到我们现在使用的UTC时间。
设置时区
$ 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 18) Iraq 35) Pakistan
2) Antarctica 19) Israel 36) Palestine
3) Armenia 20) Japan 37) Philippines
4) Azerbaijan 21) Jordan 38) Qatar
5) Bahrain 22) Kazakhstan 39) Russia
6) Bangladesh 23) Korea (North) 40) Saudi Arabia
7) Bhutan 24) Korea (South) 41) Singapore
8) Brunei 25) Kuwait 42) Sri Lanka
9) Cambodia 26) Kyrgyzstan 43) Syria
10) China 27) Laos 44) Taiwan
11) Cyprus 28) Lebanon 45) Tajikistan
12) East Timor 29) Macau 46) Thailand
13) Georgia 30) Malaysia 47) Turkmenistan
14) Hong Kong 31) Mongolia 48) United Arab Emirates
15) India 32) Myanmar (Burma) 49) Uzbekistan
16) Indonesia 33) Nepal 50) Vietnam
17) Iran 34) Oman 51) Yemen
#? 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: Tue Mar 1 12:14:18 CST 2022.
Universal Time is now: Tue Mar 1 04:14:18 UTC 2022.
Is the above information OK?
1) Yes
2) No
#? Yes
Please enter a number in range.
#? 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
# 选择成功之后，可以执行以下命令，重新登录shell即可生效：
$ sudo cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
# 最后，使用命令date在查看一下当前时间，时区变成了CST（China Standard Time）
$ date
Tue 01 Mar 2022 12:16:57 PM CST