Moodle has two separate Moodle pages for location: Location Settings and Update location time zone.
You have three options to make changes on the Location Settings page:
The remainder of this page is related to IP settings and IP address lookup and includes a short explanation for each choice.
The Update Time Zones page enables anyone with administrative privileges to update their local database with information about world time zones. This option is useful because you may need to make changes to accommodate Daylight Saving Time.