US Time Zone Map
A map of US time zones with the current time in each, their abbreviations and UTC offsets, and which areas skip daylight saving time — hover any area for its local clock.
Looking this up…
Loading time zone boundaries…
How to read the US time zone map
- Find the area. Each colour is a standard time zone; state lines are drawn for reference.
- Hover for the local time. Any area shows its zone, local time, abbreviation and offset.
- Read the table. The current time in each zone, with abbreviation (EST/EDT and so on).
- Check daylight saving. Areas that stay on standard time all year, like most of Arizona, say so on hover.
Why look at a US time zone map
Calling across the country
Is it too early in California?
States split between zones
Parts of Florida, Indiana, Kentucky, Michigan, Tennessee, Texas, the Dakotas, Nebraska, Kansas, Idaho and Oregon are in a different zone from the rest of their state.
Arizona's exception
Most of Arizona skips daylight saving; the Navajo Nation observes it.
Travel planning
Know when you cross a zone line on a road trip.
Scheduling a broadcast
Plan for viewers in every zone.
Teaching
How the country is divided by time.
Where the zones come from
Zone boundaries are from timezone-boundary-builder, an open dataset built from OpenStreetMap that defines the area of every IANA time zone, clipped to the US and simplified. State lines are from the Census Bureau's cartographic boundary files. Both are drawn in the Albers equal-area projection with Alaska and Hawaii moved and rescaled.
The current offset, abbreviation and daylight saving status of each zone come from the IANA time zone database in your browser and update every 30 seconds.
Some areas follow a neighbouring zone by local custom (unofficially); the map shows the zone the boundary data assigns.
Frequently asked questions
How many time zones does the US have?
Six cover the 50 states (Hawaii-Aleutian, Alaska, Pacific, Mountain, Central, Eastern); territories add Atlantic, Samoa and Chamorro time.
Which states do not observe daylight saving?
Hawaii and most of Arizona. The territories also stay on standard time.
Who sets the time zone boundaries?
The US Department of Transportation, under the Uniform Time Act.
Why are there several zones with the same colour?
The map colours by standard zone. The IANA database splits zones by history (for example several Indiana zones), but they share today's clock time.
Is Arizona on Pacific or Mountain time?
Mountain Standard Time all year. In summer that matches Pacific Daylight Time.
Related tools
Time Zone Finder
Type any address or use your location and get its IANA time zone, current local time, UTC offset, whether daylight saving time is in effect, and the date of the next clock change.
Time zone from Open-Meteo; rules from the IANA tz database in your browser
Time Difference Calculator
Compare the time in several cities at once, see how many hours ahead or behind each one is, convert a time between them and find the hours that suit everyone.
IANA tz database in your browser; Open-Meteo time zone lookup
World Time Zone Map
A live map of every time zone in the world coloured by its current UTC offset, with each zone's local time on hover and the time now at every offset.
timezone-boundary-builder (OpenStreetMap); IANA tz database
Convert Time Zones
Pick a time in one city and see the same moment in another city, with daylight saving and the date change handled.
IANA tz database in your browser; Open-Meteo time zone lookup
Sun Position Calculator
Pick a place, date and time and get the sun's elevation and compass direction, plus sunrise, sunset, solar noon and day length in local time, with a chart of the sun's path that day.
NOAA solar calculator equations (Meeus, Astronomical Algorithms)
Sunrise Sunset Calculator
Get sunrise, sunset, dawn, dusk, solar noon and day length for every day of any month at any place, in its local time with daylight saving, and download the table.
NOAA solar calculation equations; IANA tz database