CentOS 修改时区

• 时区选择命令

  tzselect
  

• 列出的选项（选择哪个版块），在问好后面输入5亚洲回车。

  Please identify a location so that time zone rules can be set correctly.
  Please select a continent or ocean.
   1) Africa
   2) Americas
   3) Antarctica
   4) Arctic Ocean
   5) Asia
   6) Atlantic Ocean
   7) Australia
   8) Europe
   9) Indian Ocean
  10) Pacific Ocean
  11) none - I want to specify the time zone using the Posix TZ format.
  #? 5
  

  

• 选择国家，在问号后面输入9中国回车。

  #? 5
  Please select a country.
   1) Afghanistan           18) Israel                35) Palestine
   2) Armenia               19) Japan                 36) Philippines
   3) Azerbaijan            20) Jordan                37) Qatar
   4) Bahrain               21) Kazakhstan            38) Russia
   5) Bangladesh            22) Korea (North)         39) Saudi Arabia
   6) Bhutan                23) Korea (South)         40) Singapore
   7) Brunei                24) Kuwait                41) Sri Lanka
   8) Cambodia              25) Kyrgyzstan            42) Syria
   9) China                 26) Laos                  43) Taiwan
  10) Cyprus                27) Lebanon               44) Tajikistan
  11) East Timor            28) Macau                 45) Thailand
  12) Georgia               29) Malaysia              46) Turkmenistan
  13) Hong Kong             30) Mongolia              47) United Arab Emirates
  14) India                 31) Myanmar (Burma)       48) Uzbekistan
  15) Indonesia             32) Nepal                 49) Vietnam
  16) Iran                  33) Oman                  50) Yemen
  17) Iraq                  34) Pakistan
  #? 9
  

  

• 选择时区，选择1北京。

  #? 9
  Please select one of the following time zone regions.
  1) Beijing Time
  2) Xinjiang Time
  #? 1
  

• 确定，1。

  The following information has been given:
  
          China
          Beijing Time
  
  Therefore TZ='Asia/Shanghai' will be used.
  Local time is now:      Sat Mar 27 20:13:37 CST 2021.
  Universal Time is now:  Sat Mar 27 12:13:37 UTC 2021.
  Is the above information OK?
  1) Yes
  2) No
  #? Yes
  Please enter 1 for Yes, or 2 for 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
  [root@5db5bd347f90 paymc_service]# date
  Sat Mar 27 20:13:55 CST 2021