Localization

Set options particular to a particular language or location like keyboard layout and timezone

Also see the set_local script.

Set Locale & Keyboard

Interactively, use dpkg:

sudo dpkg-reconfigure locales
sudo dpkg-reconfigure keyboard-configuration

To see your locale settings...

>>> locale
LANG=en_GB.UTF-8
LANGUAGE=
LC_CTYPE="en_GB.UTF-8"
LC_NUMERIC="en_GB.UTF-8"
LC_TIME="en_GB.UTF-8"
LC_COLLATE="en_GB.UTF-8"
LC_MONETARY="en_GB.UTF-8"
LC_MESSAGES="en_GB.UTF-8"
LC_PAPER="en_GB.UTF-8"
LC_NAME="en_GB.UTF-8"
LC_ADDRESS="en_GB.UTF-8"
LC_TELEPHONE="en_GB.UTF-8"
LC_MEASUREMENT="en_GB.UTF-8"
LC_IDENTIFICATION="en_GB.UTF-8"
LC_ALL=

Set Timezone

Use timedatectl. Also see ntpd for synchronizing time and keeping time accurate

See current Timezone Info

>>> timedatectl
               Local time: Sat 2022-04-30 01:14:32 BST
           Universal time: Sat 2022-04-30 00:14:32 UTC
                 RTC time: n/a
                Time zone: Europe/London (BST, +0100)
System clock synchronized: yes
              NTP service: active
          RTC in local TZ: no

List Timezones

To find the code for your timezone, list the available timezones:

>>> timedatectl list-timezones
...
America/Indiana/Winamac
America/Inuvik
America/Iqaluit
America/Jamaica
America/Juneau
America/Kentucky/Louisville
America/Kentucky/Monticello
America/La_Paz
...

Set Timezone

Using the timezone name from the previous step, for example if ours was America/Los_Angeles

sudo timedatectl set-timezone America/Los_Angeles