US time zone map
All US time zones, from Eastern to Chamorro, on one map with the current time in each. See which states are split between two zones and when the clocks change.
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Tap the map to see the exact time zone of any point.
Time in each US time zone
How to use it
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Read the map
Each color is a time zone, with its live time. Tap any point to get its exact zone, down to the county lines in Indiana or Kentucky.
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Check the clocks
The cards show the time in every US zone, including the territories. Tap one to highlight that zone on the map and fly to it.
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Plan around the changes
Below the map you’ll find the states split between two zones and the dates when daylight saving time starts and ends.
The US time zones
By law, the US and its territories have nine standard time zones: Atlantic, Eastern, Central, Mountain, Pacific, Alaska, Hawaii-Aleutian, Samoa and Chamorro. Six of them cover the 50 states. Arizona and Hawaii stay on standard time all year, and so do the territories.
| Time zone | Standard time | Daylight saving time | Where |
|---|---|---|---|
| Eastern | UTC−5 | UTC−4 | New York, Washington, D.C., Atlanta, Miami, Detroit, Indianapolis |
| Central | UTC−6 | UTC−5 | Chicago, Houston, Dallas, New Orleans, Minneapolis, Nashville |
| Mountain | UTC−7 | UTC−6 | Denver, Salt Lake City, Albuquerque, El Paso, Boise, the Navajo Nation |
| Mountain (no DST) | UTC−7 | — | Phoenix, Tucson, Flagstaff |
| Pacific | UTC−8 | UTC−7 | Los Angeles, San Francisco, Seattle, Las Vegas, Portland |
| Alaska | UTC−9 | UTC−8 | Anchorage, Fairbanks, Juneau |
| Hawaii-Aleutian | UTC−10 | UTC−9 | Adak and the western Aleutians |
| Hawaii-Aleutian (no DST) | UTC−10 | — | Honolulu, Hilo |
| Atlantic | UTC−4 | — | Puerto Rico, US Virgin Islands |
| Samoa | UTC−11 | — | American Samoa |
| Chamorro | UTC+10 | — | Guam, Northern Mariana Islands |
States split between two time zones
Crossing the time zone boundaries with every county in the country, 15 states have land in two time zones: Alabama, Alaska, Arizona, Florida, Idaho, Indiana, Kansas, Kentucky, Michigan, Nebraska, North Dakota, Oregon, South Dakota, Tennessee and Texas. The share is of each state’s land area; the counties listed are the ones that fall in the smaller zone.
| State | Time zones (share of land area) | Counties in the smaller zone |
|---|---|---|
| Alabama | Central 99.5%, Eastern 0.5% | part of Chambers, Lee and Russell |
| Alaska | Alaska 99.6%, Hawaii-Aleutian 0.4% | part of Aleutians West Census Area |
| Arizona | Mountain (no DST) 86%, Mountain 14% | part of Apache, Coconino and Navajo |
| Florida | Eastern 86.3%, Central 13.7% | Bay, Calhoun, Escambia, Holmes, Jackson, Okaloosa, Santa Rosa, Walton, Washington; part of Franklin and Gulf |
| Idaho | Mountain 77.1%, Pacific 22.9% | Benewah, Bonner, Boundary, Clearwater, Kootenai, Latah, Lewis, Nez Perce, Shoshone; part of Idaho |
| Indiana | Eastern 85.8%, Central 14.2% | Gibson, Jasper, Lake, LaPorte, Newton, Perry, Porter, Posey, Spencer, Starke and 2 more |
| Kansas | Central 95.4%, Mountain 4.6% | Greeley, Hamilton, Sherman, Wallace |
| Kentucky | Eastern 61.6%, Central 38.4% | Adair, Allen, Ballard, Barren, Breckinridge, Butler, Caldwell, Calloway, Carlisle, Christian and 31 more |
| Michigan | Eastern 92.8%, Central 7.2% | Dickinson, Gogebic, Iron, Menominee |
| Nebraska | Central 68.7%, Mountain 31.3% | Arthur, Banner, Box Butte, Chase, Cheyenne, Dawes, Deuel, Dundy, Garden, Grant and 8 more; part of Cherry |
| North Dakota | Central 82%, Mountain 18% | Adams, Billings, Bowman, Golden Valley, Grant, Hettinger, Slope, Stark; part of Dunn, McKenzie and Sioux |
| Oregon | Pacific 91.6%, Mountain 8.4% | part of Malheur |
| South Dakota | Central 56.4%, Mountain 43.6% | Bennett, Butte, Corson, Custer, Dewey, Fall River, Haakon, Harding, Jackson, Lawrence and 5 more; part of Stanley |
| Tennessee | Central 71.6%, Eastern 28.4% | Anderson, Blount, Bradley, Campbell, Carter, Claiborne, Cocke, Grainger, Greene, Hamblen and 20 more |
| Texas | Central 97.9%, Mountain 2.1% | El Paso, Hudspeth |
How it’s worked out: we look up the time zone every 1.7 km (about a mile) inside each county, leaving out a 1.5 km strip along its edge, where Census and OpenStreetMap lines can disagree by a few hundred meters. Alabama shows up because the boundaries put Phenix City and its surroundings on Eastern Time, which they follow in practice; tiny pockets such as West Wendover, Nevada (on Mountain Time), are below the method’s threshold.
Arizona and the Navajo Nation
Arizona has stayed on Mountain Standard Time all year since 1968, so in summer it has the same time as California. The Navajo Nation, in the northeast of the state, does switch to daylight saving time, while the Hopi Reservation, surrounded by Navajo land, doesn’t. Measured by land area, 86% of Arizona never changes its clocks and 14% does.
Daylight saving time in 2026 and 2027
Daylight saving time starts on the second Sunday in March and ends on the first Sunday in November, a rule set by the Energy Policy Act of 2005. Each zone changes at 2:00 a.m. local time, so the switch sweeps across the country hour by hour. In 2026 it started on Sunday, March 8, 2026 and ends on Sunday, November 1, 2026.
| Year | Clocks spring forward | Clocks fall back |
|---|---|---|
| 2026 | Sunday, March 8, 2026, 2:00 AM → 3:00 AM | Sunday, November 1, 2026, 2:00 AM → 1:00 AM |
| 2027 | Sunday, March 14, 2027, 2:00 AM → 3:00 AM | Sunday, November 7, 2027, 2:00 AM → 1:00 AM |
Who sets the time zones
The Department of Transportation oversees time zones, a job it inherited because railroads set the first time standards. The Uniform Time Act of 1966 lets a state opt out of daylight saving time, but not adopt it year-round or change its dates; moving a county to another zone goes through a DOT proceeding.
The time zone boundaries on this map come from timezone-boundary-builder, version 2026e, which follows the county and state lines in OpenStreetMap. The clock times, offsets and change dates are worked out by your browser with the IANA time zone database.
Frequently asked questions
How many time zones does the US have?
Nine standard time zones including the territories, and six across the 50 states: Eastern, Central, Mountain, Pacific, Alaska and Hawaii-Aleutian.
Which states have two time zones?
By our county-by-county count, 15: Alabama, Alaska, Arizona, Florida, Idaho, Indiana, Kansas, Kentucky, Michigan, Nebraska, North Dakota, Oregon, South Dakota, Tennessee and Texas.
Does Arizona change its clocks?
No, except the Navajo Nation. The rest of the state stays on UTC−7 all year: the same time as Denver in winter and as Los Angeles in summer.
When does daylight saving time end in 2026?
On Sunday, November 1, 2026, at 2:00 a.m. local time, when clocks fall back to 1:00 a.m.
Related tools
All toolsSources
- Time zone boundaries, version 2026e · timezone-boundary-builder, © OpenStreetMap contributors (ODbL)
- Time Zone Database (tz) · IANA, used through your browser’s Intl
- County boundaries (1:5,000,000) and land area (2025 Gazetteer) · U.S. Census Bureau
- Daylight Saving Time rules · NIST
- Uniform Time · U.S. Department of Transportation
- Base map · OpenFreeMap, with OpenStreetMap data