RedHat Linux操作系统修改时区的方法

（1）

Here is an example of changing the timezone: (Logged in as root)

　　In order to manually change the timezone, you can edit the /etc/sysconfig/clockfile and then make a new soft link to /etc/localtime. Here is an example of changing the timezone manually to “America/Denver”:

　　1. Select the appropriate time zone from the /usr/share/zoneinfo directory. Time zone names are relative to that directory. In this case, we will select “America/Denver”

　　2. Edit the /etc/sysconfig/clocktext file so that it looks like this:

　　ZONE=”America/Denver”

　　UTC=true

　　ARC=false

　　Of course, this assumes that your hardware clock is running UTC time…

　　3. Delete the following file: /etc/localtime (backup it when you need it !)

　　4. Create a new soft link for /etc/localtime. Here is an example of step 3 and step 4:

　　# cd /etc

　　# ls -al localtime

　　lrwxrwxrwx 1 root root 39 Mar 28 07:00 localtime -> /usr/share/zoneinfo/America/Los_Angeles

　　# rm /etc/localtime

　　# ln -s /usr/share/zoneinfo/America/Denver /etc/localtime

　　# ls -al localtime

　　lrwxrwxrwx 1 root root 34 Mar 28 08:59 localtime -> /usr/share/zoneinfo/America/Denver

　　# date

（2）

查看/修改Linux时区和时间

 

一、时区

1. 查看当前时区

date -R

2. 修改设置时区

方法(1)

tzselect

方法(2) 仅限于RedHat Linux 和 CentOS

timeconfig

方法(3) 适用于Debian

dpkg-reconfigure tzdata

3. 复制相应的时区文件，替换系统时区文件；或者创建链接文件

cp /usr/share/zoneinfo/$主时区/$次时区 /etc/localtime

在中国可以使用：

cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

3. 将当前时间和日期写入BIOS，避免重启后失效

hwclock -w

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