ubuntu修改時區和時間的方法

1、首先要查看時區

[email protected]:~# date -R
Wed, 13 Sep 2017 21:04:21 -0400

如果要修改時區，執行 tzselect

2、選擇區域：亞洲

[email protected]:~# tzselect
Please identify a location so that time zone rules can be set correctly.
Please select a continent, ocean, "coord", or "TZ".
 1) Africa
 2) Americas
 3) Antarctica
 4) Asia
 5) Atlantic Ocean
 6) Australia
 7) Europe
 8) Indian Ocean
 9) Pacific Ocean
10) coord - I want to use geographical coordinates.
11) TZ - I want to specify the time zone using the Posix TZ format.
#? 4

3、選擇國家：中國

Please select a country whose clocks agree with yours.
 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

4.選擇時區：北京時間

Please select one of the following time zone regions.
1) Beijing Time
2) Xinjiang Time
#? 1

5.確認驗證：

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:      Thu Sep 14 09:14:41 CST 2017.
Universal Time is now:  Thu Sep 14 01:14:41 UTC 2017.
Is the above information OK?
1) Yes
2) No
#? yes
Please enter a number in range.
#? 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

6.復制文件到/etc目錄下

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

7、更新時間

sudo ntpdate time.windows.com

改時間參考：

修改時間

sudo date -s MM/DD/YY 
//修改日期
sudo date -s hh:mm:ss 
//修改時間

在修改時間以後，修改硬件CMOS的時間

sudo hwclock --systohc 
//非常重要，如果沒有這一步的話，後面時間還是不準

本文出自 “cvsblog” 博客，請務必保留此出處http://cuis1.blog.51cto.com/8805022/1965119

ubuntu修改時區和時間的方法