Ubuntu改时区及更新时间

查看当前系统时间

root@ubuntu:/# date -R
root@ubuntu-ykinterface:/usr/share/tomcat8/bin# date
Tue Dec 25 03:15:47 UTC 2018

root@ubuntu-ykinterface:/usr/share/tomcat8/bin# date -R
Tue, 25 Dec 2018 03:16:26 +0000

需要的是东八区,所以需要设置一个时区

1.运行tzselect

依次选择亚洲 Asia-中国(China)-北京(Beijing)-Yes

root@ubuntu-ykinterface:/usr/share/tomcat8/bin# 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
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
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 Dec 25 11:17:17 CST 2018.
Universal Time is now: Tue Dec 25 03:17:17 UTC 2018.
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.复制文件到/etc目录下

root@ubuntu-ykinterface:/usr/share/tomcat8/bin# cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime

3.再次查看时间date -R,已经修改为北京时间

root@ubuntu-ykinterface:/usr/share/tomcat8/bin# date
Tue Dec 25 11:18:47 CST 2018
root@ubuntu-ykinterface:/usr/share/tomcat8/bin# date -R
Tue, 25 Dec 2018 11:18:56 +0800

 

修改时间

date -s MM/DD/YY //修改日期
date -s hh:mm:ss //修改时间
在修改时间以后,修改硬件时间

root@ubuntu-ykinterface:/usr/share/tomcat8/bin# hwclock –systohc //非常重要

发表评论

电子邮件地址不会被公开。 必填项已用*标注

此站点使用Akismet来减少垃圾评论。了解我们如何处理您的评论数据