Liunx修改系统时间时区

 

[root@mishi-tl-crm ~]# 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:    Sat Jan 11 04:38:20 CST 2020.
Universal Time is now:    Fri Jan 10 20:38:20 UTC 2020.
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
[root@mishi-tl-crm ~]# TZ='Asia/Shanghai'; export TZ
[root@mishi-tl-crm ~]# date
Sat Jan 11 04:38:36 CST 2020
[root@mishi-tl-crm ~]# date -s 01/10/2020
Fri Jan 10 00:00:00 CST 2020
[root@mishi-tl-crm ~]# date -s 15:39:30

[root@mishi-tl-crm ~]# clock -r
Sat 11 Jan 2020 04:40:00 AM CST -0.100948 seconds
[root@mishi-tl-crm ~]# date
Fri Jan 10 15:40:09 CST 2020
[root@mishi-tl-crm ~]# clock -w
[root@mishi-tl-crm ~]# hwclock --show
Fri 10 Jan 2020 03:40:39 PM CST -0.834094 seconds

[root@mishi-tl-crm ~]# hwclock -w

[root@mishi-tl-crm ~]# cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
cp: overwrite ‘/etc/localtime’?
[root@mishi-tl-crm ~]# date
Fri Jan 10 15:42:31 CST 2020

 

 

tzselect

TZ='Asia/Shanghai'; export TZ

 

修改Linux的时间 

date -s 01/10/2020

date -s 15:44:00

或 

date -s  ‘01/10/2020 15:44:00’

clock -w

hwclock -w

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