Modify CentOS server time to Beijing time

I bought a VPS and CentOS system and found that the server time is often inconsistent with Beijing time, and there is a time difference.

[ clive@server workspace]$ date
2018 Wednesday, May 30,:02:47 UTC

You can execute the tzselect command to change the time zone as prompted, and select 5-Asia, 9-China, 1-Beijing Time in turn.

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) Chinese 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:  Wed May 3010:04:16 CST 2018.
Universal Time is now:  Wed May 3002:04:16 UTC 2018.
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

Add the line TZ='Asia/Shanghai'; export TZ to /etc/profile (valid for all users) or ~/.bash_profile (valid for current users)
Just log out and log in again, or execute source /etc/profile or source ~/.bash_profile to take effect immediately
At this time, execute date again to check the date and you can find that the time zone is changed to Beijing time.

[ clive@server workspace]$ date
2018 Wednesday, May 30,:07:11 CST