US Time Zone Map

The 50 states and DC keep 6 standard time zones: Eastern, Central, Mountain, Pacific, Alaska, and Hawaii-Aleutian. 15 states keep more than one clock; the table below names the counties and towns on the smaller side.

Each zone is drawn from its time-zone boundary, with state lines on top. Choose a zone to open its clock and next change, or find the zone at your exact spot.

The time in each US zone now

Eastern TimeUTC-05:00 in January; UTC-04:00 in JulyEastern · 994 countiesAmerica/New_York

Central TimeUTC-06:00 in January; UTC-05:00 in JulyCentral · 1483 countiesAmerica/Chicago

Mountain TimeUTC-07:00 in January; UTC-06:00 in JulyMountain · 257 countiesAmerica/Denver

Mountain TimeUTC-07:00Arizona, no daylight saving time · 13 countiesAmerica/Phoenix

Pacific TimeUTC-08:00 in January; UTC-07:00 in JulyPacific · 159 countiesAmerica/Los_Angeles

Alaska TimeUTC-09:00 in January; UTC-08:00 in JulyAlaska · 17 countiesAmerica/Anchorage

Hawaii-Aleutian TimeUTC-10:00 in January; UTC-09:00 in JulyThe western Aleutian IslandsAmerica/Adak

Hawaii-Aleutian TimeUTC-10:00Hawaii, no daylight saving time · 5 countiesPacific/Honolulu

States split between two time zones

Each county is placed by the clock at its central point, as on the state pages, and a town that keeps a different clock from its county is named. Where the line runs through a county, part of it keeps the other clock: for an address near the line, check the exact point before you set a meeting or a deadline.

State	Clocks and the counties on each
Alaska	Alaska Time: 29 of 30 boroughs and census areas Hawaii-Aleutian Time: Aleutians West Census Area
Arizona	Mountain Time, no daylight saving time: most of the state Mountain Time: the Navajo Nation, in parts of Apache, Navajo and Coconino counties, except the Hopi Reservation inside it
Florida	Eastern Time: 58 of 67 counties Central Time: Bay, Calhoun, Escambia, Holmes, Jackson, Okaloosa, Santa Rosa, Walton, and Washington counties
Idaho	Mountain Time: 34 of 44 counties Pacific Time: Benewah, Bonner, Boundary, Clearwater, Idaho, Kootenai, Latah, Lewis, Nez Perce, and Shoshone counties
Indiana	Eastern Time: 80 of 92 counties Central Time: Gibson, Jasper, Lake, LaPorte, Newton, Perry, Porter, Posey, Spencer, Starke, Vanderburgh, and Warrick counties
Kansas	Central Time: 101 of 105 counties Mountain Time: Greeley, Hamilton, Sherman, and Wallace counties
Kentucky	Eastern Time: 79 of 120 counties Central Time: Adair, Allen, Ballard, Barren, Breckinridge, Butler, Caldwell, Calloway, Carlisle, Christian, Clinton, Crittenden, Cumberland, Daviess, Edmonson, Fulton, Graves, Grayson, Green, Hancock, Hart, Henderson, Hickman, Hopkins, Livingston, Logan, Lyon, Marshall, McCracken, McLean, Metcalfe, Monroe, Muhlenberg, Ohio, Russell, Simpson, Todd, Trigg, Union, Warren, and Webster counties
Michigan	Eastern Time: 79 of 83 counties Central Time: Dickinson, Gogebic, Iron, and Menominee counties
Nebraska	Central Time: 74 of 93 counties Mountain Time: Arthur, Banner, Box Butte, Chase, Cherry, Cheyenne, Dawes, Deuel, Dundy, Garden, Grant, Hooker, Keith, Kimball, Morrill, Perkins, Scotts Bluff, Sheridan, and Sioux counties
Nevada	Pacific Time: all counties Mountain Time: West Wendover (a town; its county keeps the other clock)
North Dakota	Central Time: 44 of 53 counties Mountain Time: Adams, Billings, Bowman, Dunn, Golden Valley, Grant, Hettinger, Slope, and Stark counties
Oregon	Pacific Time: 35 of 36 counties Mountain Time: Malheur County
South Dakota	Central Time: 50 of 66 counties Mountain Time: Bennett, Butte, Corson, Custer, Dewey, Fall River, Haakon, Harding, Jackson, Lawrence, Meade, Oglala Lakota, Pennington, Perkins, Stanley, and Ziebach counties
Tennessee	Central Time: 65 of 95 counties Eastern Time: Anderson, Blount, Bradley, Campbell, Carter, Claiborne, Cocke, Grainger, Greene, Hamblen, Hamilton, Hancock, Hawkins, Jefferson, Johnson, Knox, Loudon, McMinn, Meigs, Monroe, Morgan, Polk, Rhea, Roane, Scott, Sevier, Sullivan, Unicoi, Union, and Washington counties
Texas	Central Time: 252 of 254 counties Mountain Time: El Paso and Hudspeth counties

Where the clock doesn’t change in summer

Hawaii, most of Arizona, Puerto Rico, the US Virgin Islands, Guam, the Northern Mariana Islands, and American Samoa keep the same time all year. In Arizona the Navajo Nation does move its clocks, and the Hopi Reservation inside it does not; Arizona’s page shows both. Everywhere else in the states, clocks go forward on the second Sunday in March and back on the first Sunday in November.

More about US clocks

Every time zone in the world · Convert a time between zones · When your phone shows a different zone · US states and territories