Timezone from Coordinates
Get the IANA timezone, UTC offset, abbreviation, and DST status for any latitude and longitude. Powered by our own keyless timezone API. Free, runs in your browser.
Enter coordinates
Tip: click the map to set the location. The lookup is live — it returns the timezone as of the current moment, including DST if active.
Use the timezone API directly
This page is a UI for our free, keyless timezone endpoint:
GET https://api.latlng.work/v1/timezone?lat=40.758&lng=-73.9855
GET https://api.latlng.work/v1/timezone?lat=40.758&lng=-73.9855×tamp=1735689600Returns the IANA zone, UTC offset (with DST applied), abbreviation, local wall-clock time, and source provenance. No API key, no rate limits on the demo tier.
Frequently Asked Questions
How does this tool determine my timezone from coordinates?
It calls our own /v1/timezone API, which looks up the timezone boundary polygon for your point and then computes the UTC offset and DST flag live from the runtime tz database. No third-party service is involved.
Why does my timezone differ from what my phone shows?
Timezone boundaries follow country/region borders, not strict longitude. Two cities at similar longitudes can be in different zones if they sit on opposite sides of a border — for example, America/Phoenix (no DST) vs America/Denver at the same longitude.
What does "is_dst" mean?
It reports whether Daylight Saving Time is in effect at the coordinate right now (or at the timestamp you specify). For example, New York reports true in July and false in January.
Can I look up the timezone for a past or future date?
Yes — use the API directly with a timestamp parameter: GET /v1/timezone?lat=40.758&lng=-73.985×tamp=1735689600. The tool on this page always uses the current time.