# phpman > info > LOCALTIME

[LOCALTIME(5)](https://www.chedong.com/phpMan.php/man/LOCALTIME/5/markdown)                       localtime                      [LOCALTIME(5)](https://www.chedong.com/phpMan.php/man/LOCALTIME/5/markdown)

NAME
       localtime - Local timezone configuration file

SYNOPSIS
       /etc/localtime -> ../usr/share/zoneinfo/...

DESCRIPTION
       The /etc/localtime file configures the system-wide timezone of the
       local system that is used by applications for presentation to the user.
       It should be an absolute or relative symbolic link pointing to
       /usr/share/zoneinfo/, followed by a timezone identifier such as
       "Europe/Berlin" or "Etc/UTC". The resulting link should lead to the
       corresponding binary [tzfile(5)](https://www.chedong.com/phpMan.php/man/tzfile/5/markdown) timezone data for the configured
       timezone.

       Because the timezone identifier is extracted from the symlink target
       name of /etc/localtime, this file may not be a normal file or hardlink.

       If /etc/localtime is missing, the default "UTC" timezone is used.

       The timezone may be overridden for individual programs by using the $TZ
       environment variable. See [environ(7)](https://www.chedong.com/phpMan.php/man/environ/7/markdown).

       You may use [timedatectl(1)](https://www.chedong.com/phpMan.php/man/timedatectl/1/markdown) to change the settings of this file from the
       command line during runtime. Use [systemd-firstboot(1)](https://www.chedong.com/phpMan.php/man/systemd-firstboot/1/markdown) to initialize the
       time zone on mounted (but not booted) system images.

SEE ALSO
       [systemd(1)](https://www.chedong.com/phpMan.php/man/systemd/1/markdown), [tzset(3)](https://www.chedong.com/phpMan.php/man/tzset/3/markdown), [localtime(3)](https://www.chedong.com/phpMan.php/man/localtime/3/markdown), [timedatectl(1)](https://www.chedong.com/phpMan.php/man/timedatectl/1/markdown), systemd-
       [timedated.service(8)](https://www.chedong.com/phpMan.php/man/timedated.service/8/markdown), [systemd-firstboot(1)](https://www.chedong.com/phpMan.php/man/systemd-firstboot/1/markdown)

systemd 249                                                       [LOCALTIME(5)](https://www.chedong.com/phpMan.php/man/LOCALTIME/5/markdown)