Ubuntu Server Set time zone and update time

1. First check the time zone:

[Email protected]:~$ Date-rfri, 2016 16:54:59-0800

2. Select Region: Asia

If you want to modify the time zone, execute sudo tzselect

[Email protected]:~$ sudo tzselect

[sudo] password for beachboyy:
Please identify a, so, 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
Pacific Ocean
One) None-i want to specify the time zone using the Posix TZ format.
#? 5

3. Select Country: China

Please select a country. 1) Afghanistan          ) Israel         &NB Sp       35) palestine 2) Armenia              ) Japan                  PHILIPPINES 3) Azerbaijan            20) Jordan                37) qatar 4) Bahrain         &NBSP ;     Kazakhstan            38) russia 5) Bangladesh       & nbsp    22) Korea (north)        ) Saudi Arabia 6) Bhutan         &NB Sp       23) Korea (south)        ) singapore 7) Brunei                24) Kuwait                41) Sri lanka 8) Cambod IA              25) Kyrgyzstan            42) syria 9) China & nbsp               $) Laos                  43 ) TAIWAN10) Cyprus                27) Lebanon           & nbsp   Tajikistan11) East Timor            28) Macau                ) Thailand12) Georgia              ) Malaysia     & nbsp        46) Turkmenistan13) Hong Kong             Mongolia   &NB Sp          47) Arab Emirates14) India               &NBSP ; Myanmar (Burma)       Uzbekistan15) Indonesia             Nepal                 VIETNAM16) Iran             &NB Sp     33) Oman                  50) YEMEN17) Iraq                  34) pakistan#? 9

4. Choose your time zone: GMT

Please select one of the following time zone Regions.1) east China-beijing, Guangdong, Shanghai, ETC.2) Heilongjiang (ex  Cept Mohe), Jilin3) Central China-sichuan, Yunnan, Guangxi, Shaanxi, Guizhou, Etc.4) Most of Tibet & Xinjiang5) west Tibet & xinjiang#? 1

5. Confirm the verification:

The following information has been Given:china East China-beijing, Guangdong, Shanghai, etc. Therefore tz= ' Asia/shanghai ' would be used. Local time is Now:sat 08:56:28 CST 2016.Universal time is Now:sat 00:56:28 UTC 2016.Is the above inf Ormation ok?1) Yes2) no#? 1You can make this change permanent to yourself by appending the line tz= ' Asia/shanghai '; Export Tzto the file '. Profile ' in your home directory; Then logs out and logs in again. Here is the TZ value again, this time on the standard output so that youcan use the/usr/bin/tzselect command in shell script S:asia/shanghai

6. copy files to/etc directory sudo cp/usr/share/zoneinfo/asia/shanghai/etc/localtime7. Update time sudo ntpdate time.windows.com change Time Reference:

Modification time

sudo date-s mm/dd/yy//modification date sudo date-s hh:mm:ss//Modified Time

Time to modify the hardware CMOS after the modification time

sudo hwclock--SYSTOHC//Very important, if there is no such a step, the latter time is still not allowed

Ubuntu Server Set time zone and update time