Translations:Locale/4/en

System

Check your current system settings (type in terminal)

 locale

Check which are already active

 locale -a

If your locale is not listed, you must edit /etc/locale.gen and uncomment yours. In example LANG=zh_TW.UTF-8

# zh_SG.UTF-8 UTF-8
# zh_TW BIG5
# zh_TW.EUC-TW EUC-TW
zh_TW.UTF-8 UTF-8
# zu_ZA ISO-8859-1

You may want to uncomment all the variations of your country code "zh_TW" to use them as fallbacks for some programs they might use them. Then, generate them with this command

sudo locale-gen

Now you can set the system locale with this

sudo localectl set-locale LANG=zh_TW.UTF-8

The settings are set in the system file /etc/locale.conf. You don't need to manually edit this file unless you are having troubles. Here is a sample