centos 6.5 查看时区和设置时区

centos6.x 和centos7.x在时区方面有点差距，本文是针对centos6.x进行介绍。

其实在我的一个博文里，在安装系统的时候就可以进行时区的设置，本文介绍的是用命令进行时区查看和设置。

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使用date命令查看时区

[root@ltt1 ~]# date -R
Thu,  Sep  :: +

我们国家的东八区（+0800）

查看clock系统配置文件

[root@ltt1 ~]# cat /etc/sysconfig/clock
ZONE="Asia/Shanghai"

我的系统设置的时区为Asia/Shanghai，也就是我们国家的东八区（+0800）。

下面介绍设置时区的一种方式。

使用tzselect设置时区

[root@ltt1 sysconfig]# tzselect
Please identify a location so that time zone rules can be set correctly.
Please select a continent or ocean.
 ) Africa
 ) Americas
 ) Antarctica
 ) Arctic Ocean
 ) Asia
 ) Atlantic Ocean
 ) Australia
 ) Europe
 ) Indian Ocean
) Pacific Ocean
) none - I want to specify the time zone using the Posix TZ format.
#?
Please select a country.
 ) Afghanistan          ) Israel            ) Palestine
 ) Armenia          ) Japan            ) Philippines
 ) Azerbaijan          ) Jordan            ) Qatar
 ) Bahrain          ) Kazakhstan        ) Russia
 ) Bangladesh          ) Korea (North)        ) Saudi Arabia
 ) Bhutan          ) Korea (South)        ) Singapore
 ) Brunei          ) Kuwait            ) Sri Lanka
 ) Cambodia          ) Kyrgyzstan        ) Syria
 ) China          ) Laos            ) Taiwan
) Cyprus          ) Lebanon            ) Tajikistan
) East Timor          ) Macau            ) Thailand
) Georgia          ) Malaysia            ) Turkmenistan
) Hong Kong          ) Mongolia            ) United Arab Emirates
) India          ) Myanmar (Burma)        ) Uzbekistan
) Indonesia          ) Nepal            ) Vietnam
) Iran          ) Oman            ) Yemen
) Iraq          ) Pakistan
#?
Please select one of the following time zone regions.
) Beijing Time
) Xinjiang Time
#? 

The following information has been given:

    China
    Beijing Time

Therefore TZ='Asia/Shanghai' will be used.
Local time is now:    Thu Sep  :: CST .
Universal Time is now:    Wed Sep  :: UTC .
Is the above information OK?
) Yes
) No
#? 

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

根据提示一步一步选择就可以。

提君博客原创

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注意：上面最后的几行的说明，大概意思是说，tzselect命令只是输出一个标准的TZ写法，并不生效，你还需要将这个TZ放到你的home目录下的.profile文件里

如：TZ='Asia/Shanghai'; export TZ，同时还有注销再重新登录系统，才可设置永久生效。

下面亲测进行检验一下

我当前时区和时间

[root@ltt1 ~]# date -R;cat /etc/sysconfig/clock
Thu,  Sep  :: +
ZONE="Asia/Shanghai"

tzselect设置一个其他的时区，只给出个结果，一些步骤不再贴出

提君博客原创

The following information has been given:

    Anguilla

Therefore TZ='America/Anguilla' will be used.
Local time is now:    Wed Sep  :: AST .
Universal Time is now:    Wed Sep  :: UTC .
Is the above information OK?
) Yes
) No
#? 

You can make this change permanent for yourself by appending the line
    TZ='America/Anguilla'; 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:
America/Anguilla

追加

[root@ltt1 ~]# vi /etc/profile

TZ='America/Anguilla'; export TZ

[root@ltt1 ~]# source /etc/profile

结果

[root@ltt1 ~]# date -R
Wed,  Sep  :: -
[root@ltt1 ~]# cat /etc/sysconfig/clock
ZONE="Asia/Shanghai"

额，可以看到 由 +0800  变成了 -0400

提君博客原创

说明成功了，就是文件内容没有更改，目前不知是什么原因。

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