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Central Daylight Time (CDT)

Also known as: Central Time (CT), Central Standard Time (CST) and Heure Avancée du Centre (HAC, French)

Map showing the areas covered by the timezone
  • Currently observing CDT
  • Areas with same time currently UTC -5
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Central Daylight Time (CDT) is 5 hours behind Coordinated Universal Time (UTC). This time zone is in use during Daylight Saving Time in: North America.

See full time zone map

What Is Central Daylight Time?

Central Daylight Time (CDT) is the second easternmost time zone in the United States and is also used in Canada.

It covers all or parts of 20 states in the US and three provinces or territories in Canada.

About a third of the population in the USA live in the CDT time zone. It spans from northern Canada and south to Mexico.

In North America, Central Daylight Time shares a border with Eastern Daylight Time (EDT) in the east and with Mountain Daylight Time (MDT) in the west.

CDT or CST?

Central Daylight Time (CDT) is a North American time zone in use from the second Sunday in March to the first Sunday in November during Daylight Saving Time (DST). Central Standard Time (CST) is used during the remainder of the year.

CDT Is the Central Time Zone

In everyday usage, CDT is often referred to as Central Time (CT) or the Central Time Zone. This can add a bit of confusion as the term Central Time does not differentiate between standard time and Daylight Saving Time, so Central Time switches between CST and CDT in areas that use DST during part of the year.

Most North American time zones also have generic terms, including Pacific Time (PT), Mountain Time (MT), Eastern Time (ET), and Atlantic Time (AT).

Converting Central Time to Other US Time Zones

Time Zone Converter: UTC to CDT

Where and When is CDT Observed?

North America

US states using CDT in the summer and CST in the winter

  • Florida - North-West parts
    Bay, Calhoun, Escambia, Holmes, Jackson, Okaloosa, Santa Rosa, Walton and Washington counties and norther Gulf county
  • Kansas - except these western counties
    Greeley, Hamilton, Sherman and Wallace - MST/MDT
  • Kentucky - Western part
    Adair, Allen, Ballard, Barren, Breckinridge, Butler, Caldwell, Calloway, Carlisle, Christian, Clinton, Crittenden, Cumberland, Daviess, Edmonson, Fulton, Graves, Grayson, Green, Hansock, Hart, Henderson, Hickman, Hopkins, Livingston, Logan, Lyon, Marshall, McCracken, McLean, Metcalfe, Monroe, Muhlenberg, Ohio, Russell, Simpson, Todd, Trigg, Union, Warren and Webster counties
  • Michigan - A few western counties
    Dickinson, Gogebic, Iron, and Menominee
  • Nebraska - Eastern parts
    All except Arthur, Banner, Box Butte, Chase, Cheyenne, Dawes, Deuel, Dundy, Garden, Grant, Hooker, Keith, Kimball, Morrill, Perkins, Scotts Bluff, Sheridan, and Sioux counties and the western part of Cherry county which are on MST/MDT
  • North Dakota - North and Eastern parts
    counties of Barnes, Benson, Bottineau, Burke, Burleigh, Cass, Cavalier, Dickey, Divide, Eddy, Emmons, Foster, Grand Forks, Griggs, Kidder, Lamoure, Logan, McHenry, McIntosh, McLean, Mountrail, Nelson, Oliver, Pembina, Pierce, Ramsey, Ransom, Renville, Richland, Rolette, Sargent, Sheridan, Steele, Stutsman, Towner, Traill, Walsh, Ward, Wells, Williams and northern parts of McKenzie and Dunn, westernmost part of Morton and Fort Yates in Sioux
  • South Dakota - Eastern parts
    counties of Aurora, Beadle, Bon Homme, Brookings, Brown, Brule, Buffalo, Campbell, Charles Mix, Clark, Clay, Codington, Davison, Day, Deuel, Douglas, Edmunds, Faulk, Grant, Gregory, Hamlin, Hand, Hanson, Hughes, Hutchinson, Hyde, Jerauld, Jones, Kingsbury, Lake, Lincoln, Lyman, Marshall, McCook, McPherson, Mellette, Miner, Minnehaha, Moody, Potter, Roberts, Spink, Sanborn, Sully, Todd, Tripp, Turner, Union, Yankton, Walworth and eastern parts of Stanley
  • Tennessee - Western part
    counties of Bedford, Benton, Bledsoe, Cannon, Carroll, Cheatham, Chester, Clay, Coffee, Crockett, Cumberland, Davidson, Decatur, DeKalb, Dickson, Dyer, Fayette, Fentress, Franklin, Gibson, Giles, Grundy, Hardeman, Hardin, Haywood, Henderson, Henry, Hickman, Houston, Humphreys, Jackson, Lake, Lauderdale, Lawrence, Lewis, Lincoln, McNairy, Macon, Madison, Marion, Marshall, Maury, Montgomery, Moore, Obion, Overton, Perry, Pickett, Putnam, Robertson, Rutherford, Sequatchie, Shelby, Smith, Stewart, Sumner, Tipton, Trusdale, Van Buren, Warren, Wayne Weakley, White, Willamson, Wilson
  • Texas - All, but a few counties in west
    El Paso and Hudspeth and part of Culberson

Canadian provinces using CDT in the summer and CST in the winter

Mexican states using CDT in the summer and CST in the winter

See all Time Zones in North America

Other Central Daylight Time Zones

Time zones can have similar names and abbreviations but have a different UTC offset:

Other Time Zones in UTC -5

Some time zones exist that have the same offset as CDT, but can be found under a different name: