查看,修改时区

查看当前时区

date -R

修改设置时区

  1. tzselect
  2. timeconfig (仅限于RedHat Linux 和 CentOS)
  3. dpkg-reconfigure tzdata (适用于Debian)
  4. 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

时间

查看时间和日期

date

设置时间和日期

将系统日期设定成1996年6月10日的命令

date -s 06/22/96

将系统时间设定成下午1点52分0秒的命令

date -s 13:52:00

Linux使用tzselect设置时区

[root@backup ~]# tzselect
Please identify a location so that time zone rules can be set correctly.
Please select a continent or ocean.
 1) Africa
 2) Americas
 3) Antarctica
 4) Arctic Ocean
 5) Asia
 6) Atlantic Ocean
 7) Australia
 8) Europe
 9) Indian Ocean
10) Pacific Ocean
11) none - I want to specify the time zone using the Posix TZ format.
#? 5
Please select a country.
 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 Oct 18 23:02:51 CST 2016.
Universal Time is now:  Tue Oct 18 15:02:51 UTC 2016.
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