gitlab-org--gitlab-foss/doc/administration/timezone.md

Changing your time zone

The global time zone configuration parameter can be changed in config/gitlab.yml:

# time_zone: 'UTC'

Uncomment and customize if you want to change the default time zone of the GitLab application.

Viewing available timezones

To see all available time zones, run bundle exec rake time:zones:all.

For Omnibus installations, run gitlab-rake time:zones:all.

NOTE: Note: Currently, this Rake task does not list timezones in TZInfo format required by Omnibus GitLab during a reconfigure: #27209.

Changing time zone in Omnibus installations

GitLab defaults its time zone to UTC. It has a global timezone configuration parameter in /etc/gitlab/gitlab.rb.

To obtain a list of timezones, log in to your GitLab application server and run a command that generates a list of timezones in TZInfo format for the server. For example, install timedatectl and run timedatectl list-timezones.

To update, add the timezone that best applies to your location. For example:

gitlab_rails['time_zone'] = 'America/New_York'

After adding the configuration parameter, reconfigure and restart your GitLab instance:

gitlab-ctl reconfigure
gitlab-ctl restart