linux修改時區不生效怎麼辦

linux修改時區不生效的解決方法：1、登入linux系統，進入終端機；2、拷貝設定檔來修改時區；3、透過「hwclock --show」指令查看硬體時鐘，然後設定設定硬體時鐘；4、透過「vim /etc/timezone Asia/Shanghai」修改時區即可。

本教學操作環境：linux5.9.8系統、Dell G3電腦。

linux修改時區不生效怎麼辦？

linux 修改時區無效

一、選擇時區

# tzselect 
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
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
Please select one of the following time zone regions.
1) Beijing Time
2) Xinjiang Time
#? 1
The following information has been given:
        China
        Beijing Time
Therefore TZ='Asia/Shanghai' will be used.
Local time is now:      Fri Jan  4 16:02:54 CST 2019.
Universal Time is now:  Fri Jan  4 08:02:54 UTC 2019.
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

二、拷貝設定檔來修改時區

  rm -f /etc/localtime
  ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

三、檢視硬體時鐘

hwclock --show

四、設定硬體時鐘

hwclock --set --date="10/22/18 22:00"

五、同步系統硬體時鐘

hwclock --hctosys

六、修改時區檔案

vim /etc/timezone 
Asia/Shanghai

七、檢視時間

# timedatectl 
      Local time: 五 2019-01-04 15:57:15 CET
  Universal time: 五 2019-01-04 14:57:15 UTC
        RTC time: 五 2019-01-04 15:57:15
       Time zone: Asia/Shanghai (CET, +0100)
     NTP enabled: yes
NTP synchronized: no
 RTC in local TZ: yes
      DST active: no
 Last DST change: DST ended at
                  日 2018-10-28 02:59:59 CEST
                  日 2018-10-28 02:00:00 CET
 Next DST change: DST begins (the clock jumps one hour forward) at
                  日 2019-03-31 01:59:59 CET
                  日 2019-03-31 03:00:00 CEST
Warning: The system is configured to read the RTC time in the local time zone.
         This mode can not be fully supported. It will create various problems
         with time zone changes and daylight saving time adjustments. The RTC
         time is never updated, it relies on external facilities to maintain it.
         If at all possible, use RTC in UTC by calling
         'timedatectl set-local-rtc 0'.

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