FREE TOOL

What time zone am I in?

Your time zone from your location or any point on earth, with the next daylight saving change.

Free, no signup. Your location is used for one lookup and never stored.

THE API UNDERNEATH

GET /point?lat=25.77&lon=-80.19&deep=true

Coordinates in, facts out: the zone at that exact point from real timezone boundaries, plus country, state, county, and elevation on the same response. Same endpoint on every plan, one pooled request per lookup.

Point APITimezone APITimezone by ZIP

QUESTIONS

How does it know my zone?
Your browser shares your coordinates once, with your permission, and the answer comes from real timezone boundary polygons at that exact point. Nothing is stored.
Why not just use my clock?
Your device clock reflects its settings, not the ground you are standing on. Near a zone border, after travel, or on a misconfigured machine the two disagree.
What is the daylight saving line?
The next scheduled clock change for your zone, straight from the IANA rules. Zones that never change simply do not show one.
Can I do this from code?
Yes. GET /point with deep returns the zone at any coordinates, plus country, state, county, and elevation on the same response.