centos的设置时区的方式的本质是创建软连接
比如说，一台服务器的时区不正确，查看一下：
[[email protected] project]# date Tue Jun 11 23:42:26 EDT 2019 [[email protected] project]# ll /etc/localtime lrwxrwxrwx. 1 root root 38 Feb 17 04:59 /etc/localtime -> ../usr/share/zoneinfo/America/New_York
可以发现，连接的是美国纽约时间，现在更换成亚洲上海
ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
确认一下
[[email protected] project]# ll /etc/localtime lrwxrwxrwx 1 root root 33 Jun 12 11:43 /etc/localtime -> /usr/share/zoneinfo/Asia/Shanghai [[email protected] project]# date Wed Jun 12 11:44:03 CST 2019 现在时间就正确了
还有哪些时区呢：太多了
[[email protected] project]# ls /usr/share/zoneinfo/ Africa Australia Cuba Etc GMT-0 Indian Kwajalein Navajo posix ROK UTC America Brazil EET Europe GMT+0 Iran Libya NZ posixrules Singapore WET Antarctica Canada Egypt GB Greenwich iso3166.tab MET NZ-CHAT PRC Turkey W-SU Arctic CET Eire GB-Eire Hongkong Israel Mexico Pacific PST8PDT UCT zone1970.tab Asia Chile EST GMT HST Jamaica MST Poland right Universal zone.tab Atlantic CST6CDT EST5EDT GMT0 Iceland Japan MST7MDT Portugal ROC US Zulu [[email protected] project]# ls /usr/share/zoneinfo/Asia/ Aden Bahrain Chongqing Gaza Jerusalem Kuala_Lumpur Novokuznetsk Riyadh Tbilisi Urumqi Almaty Baku Chungking Harbin Kabul Kuching Novosibirsk Saigon Tehran Ust-Nera Amman Bangkok Colombo Hebron Kamchatka Kuwait Omsk Sakhalin Tel_Aviv Vientiane Anadyr Barnaul Dacca Ho_Chi_Minh Karachi Macao Oral Samarkand Thimbu Vladivostok Aqtau Beirut Damascus Hong_Kong Kashgar Macau Phnom_Penh Seoul Thimphu Yakutsk Aqtobe Bishkek Dhaka Hovd Kathmandu Magadan Pontianak Shanghai Tokyo Yangon Ashgabat Brunei Dili Irkutsk Katmandu Makassar Pyongyang Singapore Tomsk Yekaterinburg Ashkhabad Calcutta Dubai Istanbul Khandyga Manila Qatar Srednekolymsk Ujung_Pandang Yerevan Atyrau Chita Dushanbe Jakarta Kolkata Muscat Qyzylorda Taipei Ulaanbaatar Baghdad Choibalsan Famagusta Jayapura Krasnoyarsk Nicosia Rangoon Tashkent Ulan_Bator
那有没有快速确定时区的方法，有的，命令是tzselect
可以看我之前的日志 https://www.fencatn.com/cloud/linux/centos时区查看命令/