Ubuntu16.04修改时区(中国时区)

root@B-OPS-75-1:~# 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 Oct  9 10:37:00 CST 2018.
Universal Time is now:  Tue Oct  9 02:37:00 UTC 2018.
Is the above information OK?
1) Yes
2) No
#? Yes
Please enter a number in range.
#? 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

按照提示进行选择时区，然后：

root@B-OPS-75-1:~# cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
root@B-OPS-75-1:~# apt install ntpdate –y
root@B-OPS-75-1:~#  ntpdate cn.pool.ntp.org              

cn.pool.ntp.org是位于中国的公共NTP服务器地址