Timezones

vanityURLs accepts IANA timezone names, plus UTC. Do not enter numeric offsets such as -4, -5, or GMT-0400; offsets do not describe daylight saving time.

Use the place-based timezone that matches the operator or scheduled link. For example, Eastern Time should usually be America/Toronto or America/New_York. The JavaScript Intl timezone database handles the switch between EST and EDT.

Common choices

Region	Choices
UTC	`UTC`
Canada	`America/Toronto`, `America/Montreal`, `America/Halifax`, `America/Winnipeg`, `America/Regina`, `America/Edmonton`, `America/Vancouver`
United States	`America/New_York`, `America/Chicago`, `America/Denver`, `America/Phoenix`, `America/Los_Angeles`, `America/Anchorage`, `Pacific/Honolulu`
Europe	`Europe/London`, `Europe/Dublin`, `Europe/Paris`, `Europe/Berlin`, `Europe/Rome`, `Europe/Madrid`, `Europe/Amsterdam`, `Europe/Stockholm`, `Europe/Zurich`
Latin America	`America/Mexico_City`, `America/Bogota`, `America/Lima`, `America/Santiago`, `America/Argentina/Buenos_Aires`, `America/Sao_Paulo`
Africa and Middle East	`Africa/Casablanca`, `Africa/Johannesburg`, `Africa/Cairo`, `Asia/Jerusalem`, `Asia/Dubai`, `Asia/Riyadh`
Asia	`Asia/Kolkata`, `Asia/Bangkok`, `Asia/Singapore`, `Asia/Hong_Kong`, `Asia/Shanghai`, `Asia/Tokyo`, `Asia/Seoul`
Oceania	`Australia/Perth`, `Australia/Adelaide`, `Australia/Brisbane`, `Australia/Sydney`, `Pacific/Auckland`

Complete local list

The exact accepted list comes from the JavaScript runtime used by setup, build, the Worker, and the browser. To print the complete list supported by your local Node.js runtime:

node -e 'console.log(["UTC", ...Intl.supportedValuesOf("timeZone")].join("\n"))'

If setup rejects a timezone, choose one from that command’s output. Keep UTC only when you intentionally want generated timestamps and default schedule behavior to use Coordinated Universal Time.

For the operational rationale behind the setup question, read Operator timezone is not just a setup question.