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[[email protected] logs]# 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) east China - Beijing, Guangdong, Shanghai, etc.
2) Heilongjiang (except Mohe), Jilin
3) central China - Sichuan, Yunnan, Guangxi, Shaanxi, Guizhou, etc.
4) most of Tibet & Xinjiang
5) west Tibet & Xinjiang
#? 1

The following information has been given:

China
east China - Beijing, Guangdong, Shanghai, etc.

Therefore TZ=‘Asia/Shanghai‘ will be used.
Local time is now: Sat Nov 29 08:38:21 CST 2014.
Universal Time is now: Sat Nov 29 00:38:21 UTC 2014.
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

 

[[email protected] logs]# /usr/sbin/ntpdate 58.68.228.43
28 Nov 06:41:55 ntpdate[48506]: step time server 58.68.228.43 offset -46703.849158 sec
[[email protected] logs]# date
Fri Nov 28 06:41:58 EST 2014
[[email protected] logs]# date -s 19:40
Fri Nov 28 19:40:00 EST 2014
[[email protected] logs]# date -s 19:41
Fri Nov 28 19:41:00 EST 2014
[[email protected] logs]# date
Fri Nov 28 19:41:02 EST 2014
[[email protected] logs]# date -R
Fri, 28 Nov 2014 19:41:07 -0500
[[email protected] logs]# hwclock --show
Fri 28 Nov 2014 06:42:56 AM EST -0.091356 seconds
[[email protected] logs]# hwclock --set --date="11/28/2014 19:43:00"
[[email protected] logs]# hwclock --show
Fri 28 Nov 2014 07:43:04 PM EST -0.750458 seconds
[[email protected] logs]#

 

 

[[email protected] logs]# hwclock --hctosys
[[email protected] logs]# date
Fri Nov 28 19:45:42 EST 2014
[[email protected] logs]# hwclock --show
Fri 28 Nov 2014 07:45:49 PM EST -0.641103 seconds
[[email protected] logs]#

 

centos時區設定