Time Zone List

Searchable list of every IANA time zone with live UTC offset and local time

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What is Time Zone List

Last reviewed: April 18, 2026

Time Zone List is a searchable reference of every IANA time zone (America/New_York, Europe/London, Asia/Tokyo, …) with the current UTC offset and local HH:MM rendered live using the browser's Intl API.

It's the fastest way to pick the right TZ identifier when configuring cron jobs, calendar events, or scheduler rules.

Why use it

Pick the right IANA TZ for cron or scheduler configs.
Verify a server's current offset.
Plan cross-team meetings.
Debug DST-related off-by-one hour bugs.
Copy canonical IANA names for storage.

Features

Every IANA zone (modern browsers)
Live UTC offset and local time
Keyword filter
Intl-powered, no external service
Time Zone List is handled entirely in-browser

How to use Time Zone List

Type a keyword. e.g. 'europe', 'tokyo', 'utc'.
Click Run. Matching zones with offsets and local time render.
Copy IANA name. Paste into your config, cron, or API.

Example (before/after)

Filter

europe

Matching zones

Europe/Amsterdam              GMT+1       14:05
Europe/Berlin                 GMT+1       14:05
Europe/London                 GMT         13:05
Europe/Paris                  GMT+1       14:05

Common errors

Using CET / EST abbreviations

Three-letter zones are ambiguous.

Fix: Always use IANA names like Europe/Paris or America/New_York.

DST transitions

Offsets shift around DST dates.

Fix: The live offset shown reflects the current date only.

FAQ

Where do the zones come from?

Intl.supportedValuesOf('timeZone') in the browser (fallback to a curated list).

Do you show the current time?

Yes — each row shows the offset and local HH:MM in 24-hour format.

Does it account for DST?

Yes — offsets are computed with the browser's timezone database.

Is data uploaded?

No — the list is rendered entirely client-side.

Why are some zones missing?

Only browsers supporting supportedValuesOf return the full set. Old browsers fall back to a curated list.

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