Linux｜CentOS7中设置时区

 1# 交换式设置命令
 2tzselect
 3
 4# 依次选择设置的时区即可，下方为设置过程
 5[root@1889ac6ed47a /etc]# tzselect
 6Please identify a location so that time zone rules can be set correctly.
 7Please select a continent or ocean.
 8 1) Africa
 9 2) Americas
10 3) Antarctica
11 4) Arctic Ocean
12 5) Asia
13 6) Atlantic Ocean
14 7) Australia
15 8) Europe
16 9) Indian Ocean
1710) Pacific Ocean
1811) none - I want to specify the time zone using the Posix TZ format.
19#? 5
20Please select a country.
21 1) Afghanistan		  18) Israel		    35) Palestine
22 2) Armenia		  19) Japan		    36) Philippines
23 3) Azerbaijan		  20) Jordan		    37) Qatar
24 4) Bahrain		  21) Kazakhstan	    38) Russia
25 5) Bangladesh		  22) Korea (North)	    39) Saudi Arabia
26 6) Bhutan		  23) Korea (South)	    40) Singapore
27 7) Brunei		  24) Kuwait		    41) Sri Lanka
28 8) Cambodia		  25) Kyrgyzstan	    42) Syria
29 9) China		  26) Laos		    43) Taiwan
3010) Cyprus		  27) Lebanon		    44) Tajikistan
3111) East Timor		  28) Macau		    45) Thailand
3212) Georgia		  29) Malaysia		    46) Turkmenistan
3313) Hong Kong		  30) Mongolia		    47) United Arab Emirates
3414) India		  31) Myanmar (Burma)	    48) Uzbekistan
3515) Indonesia		  32) Nepal		    49) Vietnam
3616) Iran		  33) Oman		    50) Yemen
3717) Iraq		  34) Pakistan
38#? 9
39Please select one of the following time zone regions.
401) Beijing Time
412) Xinjiang Time
42#? 1
43
44The following information has been given:
45
46	China
47	Beijing Time
48
49Therefore TZ='Asia/Shanghai' will be used.
50Local time is now:	Sat Aug 29 10:33:56 CST 2020.
51Universal Time is now:	Sat Aug 29 02:33:56 UTC 2020.
52Is the above information OK?
531) Yes
542) No
55#? 1
56
57You can make this change permanent for yourself by appending the line
58	TZ='Asia/Shanghai'; export TZ
59to the file '.profile' in your home directory; then log out and log in again.
60
61Here is that TZ value again, this time on standard output so that you
62can use the /usr/bin/tzselect command in shell scripts:
63Asia/Shanghai

1# 备份之前的localtime文件
2mv localtime{,.bak}
3
4# 更改CST上海时间
5ln -s /usr/share/zoneinfo/Asia/Shanghai  /etc/localtime
6
7# 测试
8[root@1889ac6ed47a /etc]# date
9Sat Aug 29 10:38:26 CST 2020