方法一：设置TZ
在配置文件 如：.profile 添加配置行
TZ='Asia/Shanghai'; export TZ
然后执行命令即可。
source .profile
具体时区选择详情如下（可忽略）：
使用命令tzselect 选择时区，依次会弹出如下提示，输入数字选择即可。
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.
#?
输入数字5 ，提示
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
#?
输入数字9，提示
Please select one of the following time zone regions.
1) Beijing Time
2) Xinjiang Time
#?
输入数字1 ，提示
The following information has been given:
China
Beijing Time
Therefore TZ='Asia/Shanghai' will be used.
Local time is now: Tue Sep 24 11:26:50 CST 2019.
Universal Time is now: Tue Sep 24 03:26:50 UTC 2019.
Is the above information OK?
1) Yes
2) No
#?
输入数字1，提示
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
方法二：设置
- 删除旧的时区设置连接文件
/usr/share/zoneinfo/Asia/Shanghai - 创建新的时区设置文件
时区文件在系统目录/usr/share/zoneinfo/下，找到合适的时区文件，创建链接即可。
本次以设置上海时区为例，命令如下。
ln -s /usr/share/zoneinfo/Asia/Shanghai /etc/localtime