Linux修改时区设置
2021/5/7 7:25:51
本文主要是介绍Linux修改时区设置,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
问题描述:有些CentOS 7.7系统配置完ntp后,时间同步正常;通过data查看本地时间,发现时间比正常时间少8个小时。
一、主机环境:
1、系统版本:
root@xuhs:/root>cat /etc/redhat-release CentOS Linux release 7.7.1908 (Core)
2、查看ntp同步情况如下:
(1)查看客户端本地时间:
root@xuhs:/etc>date Thu May 6 09:51:44 UTC 2021
(2)查看与ntp服务端的时间同步情况:
root@xuhs:/root>ntpq -p remote refid st t when poll reach delay offset jitter ============================================================================== *192.168.100.11 LOCAL(1) 6 u 104 128 377 0.303 47.369 8.419 root@xuhs:/root>
(3)查看当前主机链接时区的情况,显示如下:
root@xuhs:/etc>ls -ltr /etc/loca* lrwxrwxrwx. 1 root root 35 May 6 2021 /etc/localtime -> ../usr/share/zoneinfo/UTC
二、修改时区设置:
1、修改方法:修改时区为北京时区,操作如下:
root@xuhs:/etc>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: Tue May 6 17:56:42 CST 2021. Universal Time is now: Tue May 6 09:56:42 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
2、修改localtime:
(1)备份:root@xuhs:/etc>mv localtime localtime.bak
(2)重新进行链接到时区文件:
root@xuhs:/etc>ls -ltr /etc/loca* lrwxrwxrwx. 1 root root 35 May 6 2021 /etc/localtime -> ../usr/share/zoneinfo/Asia/Shanghai root@xuhs:/etc>date Tue May 6 17:58:22 CST 2021
3、显示时间正常即可;
root@xuhs:/etc>ls -ltr /etc/loca* lrwxrwxrwx. 1 root root 35 May 6 2021 /etc/localtime -> ../usr/share/zoneinfo/Asia/Shanghai root@xuhs:/etc>date Tue May 6 17:58:22 CST 2021
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