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This Rake task does not list timezones in TZInfo format required by Omnibus GitLab during a reconfigure: [#27209](https://gitlab.com/gitlab-org/gitlab/-/issues/27209).
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:
```ruby
gitlab_rails['time_zone'] = 'America/New_York'
```
After adding the configuration parameter, reconfigure and restart your GitLab instance: