Eastern, Central, Mountain, Pacific, Alaska and Hawaii. Hover a zone to see its time.
Move the map beneath the crosshair to see a zone’s time.
Keyboard users: focus the map and pan with the arrow keys; the panel shows the zone at the centre of the map. More about the map is under the information button.
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The Time Zone Map
Made by Rossilite, LLC
The contiguous United States spans four time zones: Eastern (UTC-5), Central (UTC-6), Mountain (UTC-7) and Pacific (UTC-8), with Alaska (UTC-9) and Hawaii (UTC-10) further west. All but Hawaii and most of Arizona observe daylight saving time from March to November, which is why Arizona shares Pacific time in summer and Mountain time in winter.
The borders rarely follow state lines. Zoom in on Idaho, Oregon, Nebraska, the Dakotas, Kansas, Texas, Kentucky, Tennessee, Indiana or Florida to see where the line actually runs, down to the county road it follows. The Navajo Nation in Arizona keeps daylight saving while the Hopi Reservation inside it does not, and the map shows both.
How many time zones are there? 38 different UTC offsets are in use today, from UTC-12 to UTC+14, but the IANA database tracks hundreds of named zones because regions with the same offset often follow different daylight saving rules. This map draws a border only where the clocks actually differ right now.
Where does the border data come from? The open timezone-boundary-builder project, which combines OpenStreetMap boundaries with the IANA time zone database. The map is rebuilt with every release.
Is it free? Yes. No ads, no account, and it runs in any modern browser on desktop and mobile.
Time zone borders from timezone-boundary-builder (ODbL)
Map by OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
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Imagery © Esri, Maxar, Earthstar Geographics, and the GIS User Community