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Browse Area Codes by Time Zone

All US area codes organized by their time zone. Click any area code to see full details including cities, carriers, and coverage maps.

Eastern Time Zone (ET) — UTC−5

Covers New York, New Jersey, Pennsylvania, Ohio, Michigan, Indiana (east), Georgia, Florida, North Carolina, South Carolina, Virginia, West Virginia, Maryland, Delaware, Connecticut, Massachusetts, Rhode Island, Vermont, New Hampshire, Maine, and Washington D.C.

201202203207212215216219223229231234239240248251252260267269270272276301302304305313315317321330332334336339340347351352380386401404407410412413419423434440443445447463470475478484502508513516517518540551561567570571574585586603607610614616617631646667678680681689706716717718724727732740743754757762770772774781786803804810813828838843845848854856857859860862863878904908910912914917919929934937941947954959973978980984

Central Time Zone (CT) — UTC−6

Covers Texas, Illinois, Wisconsin, Minnesota, Iowa, Missouri, Arkansas, Louisiana, Mississippi, Alabama, Tennessee, Kentucky (west), Kansas, Nebraska, South Dakota, North Dakota, and Oklahoma.

205210214217218224225228254256262281309312314316318319320325331337346361364402405409414417430432469479501504507512515531534539563573580601605608612615618620629630636641651660662682701708713715726731737763769773779785806815816817830832847870872901903913915918920930936938940945952956972979

Mountain Time Zone (MT) — UTC−7

Covers Colorado, Arizona, New Mexico, Utah, Montana, Wyoming, and parts of Idaho, Nebraska, North Dakota, South Dakota, Kansas, Texas, and Oregon.

208303307385406435480505520575602623719720801928970983

Alaska Time Zone (AKT) — UTC−9

Covers the state of Alaska.

907

Hawaii-Aleutian Time Zone (HAT) — UTC−10

Covers the state of Hawaii and the Aleutian Islands of Alaska.

808

Frequently Asked Questions

How many time zones does the United States have?
The contiguous United States spans four time zones: Eastern, Central, Mountain, and Pacific. Including Alaska and Hawaii, the US has six standard time zones. US territories extend this further with Atlantic (Puerto Rico, US Virgin Islands) and Samoa Standard Time.
Can an area code span multiple time zones?
Yes. Some area codes cover regions that cross time zone boundaries. For example, certain area codes in Indiana, Kentucky, Tennessee, Nebraska, and the Dakotas may include communities in two different time zones. Always check the specific city for the exact time zone.
Does Arizona observe Daylight Saving Time?
Most of Arizona does not observe Daylight Saving Time, staying on Mountain Standard Time (MST) year-round. The exception is the Navajo Nation, which does observe DST. This means Arizona area codes (480, 520, 602, 623, 928) are UTC-7 all year.
What time zone is the 212 area code in?
Area code 212 is in the Eastern Time Zone (UTC-5). It covers Manhattan in New York City and is one of the original area codes established in 1947.