CT – Central Time

USA stater som bruker CST om vinteren og CDT om sommeren

• Alabama
• Arkansas
• Florida - North-West parts Vis

  Bay, Calhoun, Escambia, Holmes, Jackson, Okaloosa, Santa Rosa, Walton and Washington counties and norther Gulf county

• Illinois
• Indiana - these few north-western counties near Chicago (Lake, Porter, La Porte, Newton, Jasper, Starke) and these south-western counties in Indiana near Evansville Vis

  Gibson, Posey, Vanderburgh, Warrick, Perry, Spencer

• Iowa
• Kansas - except these western counties Vis

  Greeley, Hamilton, Sherman and Wallace - MST/MDT

• Kentucky - Western part Vis

  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

• Louisiana
• Michigan - A few western counties Vis

  Dickinson, Gogebic, Iron, and Menominee

• Minnesota
• Mississippi
• Missouri
• Nebraska - Eastern parts Vis

  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 Vis

  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

• Oklahoma
• South Dakota - Eastern parts Vis

  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 Vis

  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 Vis

  El Paso and Hudspeth and part of Culberson

• Wisconsin

Canadiske provinser som bruker CST om vinteren og CDT om sommeren

• Manitoba
• Ontario - most parts west of 90 West. (Parts east of 90 West is on EST/EDT)
• Saskatchewan - only Creighton and Denare Beach

Meksikanske stater som bruker CST om vinteren og CDT om sommeren

• Aguascalientes
• Campeche
• Chiapas
• Coahuila
• Colima
• Distrito Federal
• Durango
• Guanajuato
• Guerro
• Hidalgo
• Jalisco
• León
• Michoacán
• Morelos
• México
• Nuevo León
• Oaxaca
• Puebla
• Querétaro
• Quintana Roo
• San Luis Potosí
• Tabasco
• Tamaulipas
• Tlaxcala
• Veracruz
• Yucatán
• Zacatecas

Canadiske provinser som bruker CST hele året

• Ontario - a few communities Vis

  Atikokan, New Osnaburgh, Pickle Lake

• Saskatchewan - most of it Vis

  except Creighton and Denare Beach which use CDT during summer, and Lloydminster which is in the MST/MDT zone

Mellom-amerikanske land som bruker CST hele året

• Belize
• Costa Rica
• El Salvador
• Guatemala
• Honduras
• Nicaragua