The Timezone picklist value set is referenced by the Timezone field within Inspire Projects. This help article will walk you through how to update the Timezone picklist value set.
(GMT+12:00) Fiji Standard Time (Pacific/Fiji) (GMT+12:00) Norfolk Island Time (Pacific/Norfolk) (GMT+10:00) Australian Eastern Standard Time (Australia/Sydney) (GMT+03:00) Eastern European Summer Time (Europe/Bucharest) (GMT+02:00) Central European Summer Time (Europe/Paris) (GMT+02:00) Central European Summer Time (Europe/Berlin) (GMT+02:00) Central European Summer Time (Europe/Amsterdam) (GMT+01:00) Irish Standard Time (Europe/Dublin) (GMT+01:00) British Summer Time (Europe/London) (GMT+01:00) Africa/Casablanca (GMT+00:00) Greenwich Mean Time (Europe/Dublin) (GMT-02:30) Newfoundland Daylight Time (America/St_Johns) (GMT-03:00) Atlantic Daylight Time (America/Halifax) (GMT-03:00) Atlantic Daylight Time (Atlantic/Bermuda) (GMT-04:00) Eastern Daylight Time (America/Indiana/Indianapolis) (GMT-04:00) Eastern Daylight Time (America/New_York) (GMT-05:00) Central Daylight Time (America/Chicago) (GMT-05:00) hora de verano central (America/Mexico_City) (GMT-06:00) Mountain Daylight Time (America/Denver) (GMT-07:00) Pacific Daylight Time (America/Los_Angeles) (GMT-07:00) Pacific Daylight Time (America/Tijuana) (GMT-08:00) Alaska Daylight Time (America/Anchorage) (GMT-09:00) Hawaii-Aleutian Daylight Time (America/Adak)