UTC−06:00 is an identifier for a time offset from UTC of −06:00. In North America, it is observed in the Central Time Zone during standard time, and in the Mountain Time Zone during the other eight months (see daylight saving time). Several Latin American countries and a few other places use it year-round. As standard time (Northern Hemisphere winter) Principal cities: Mexico City, Chicago, Dallas, Houston, St. Louis, Minneapolis, Austin, Kansas City, San Antonio, Nashville, Milwaukee, Puebla Oklahoma City, Winnipeg, Orizaba, Regina North America CST is standard time in the 6th time zone west of Greenwich, reckoned at the 90th meridian; used in North America in some parts of Canada, Mexico and the United States. Canada (Central Time Zone) Manitoba Nunavut Kivalliq Region except Southampton Island (Coral Harbour) Ontario West of 90° west Mexico All except Baja California, Baja California Sur, Chihuahua, Nayarit, Quintana Roo, Sinaloa and Sonora. A small enclave of the UTC-6 time zone is followed in the municipality of Bahía de Banderas, Nayarit, due to its strong economic ties with the neighboring municipality of Puerto Vallarta, Jalisco. In most UNIX-like operating systems this area is represented as Americas/Bahia_Banderas. United States (Central Time Zone) Florida The counties of Bay, Calhoun, Escambia, Holmes, Jackson, Okaloosa, Santa Rosa, Walton, and Washington, and northern Gulf county (panhandle) Illinois Indiana Northwestern counties of Jasper, Lake, LaPorte, Newton, Porter and Starke Southwestern counties of Gibson, Perry, Posey, Spencer, Vanderburgh and Warrick Iowa Kansas Entire state except Greeley, Hamilton, Sherman and Wallace counties Kentucky The counties of Breckinridge, Grayson, Hart, Green, Adair, Russell and Clinton, and all counties to the west of these Louisiana Michigan The western counties of Dickinson, Gogebic, Iron and Menominee Minnesota Mississippi Missouri Nebraska Central and eastern Nebraska North Dakota Entire state except southwest Oklahoma Entire state except Kenton South Dakota Eastern half Tennessee Counties to the west of the counties of Scott, Morgan, Roane, Rhea, and Hamilton Texas All except westernmost counties Wisconsin As daylight saving time (Northern Hemisphere summer) Principal cities: Denver, Billings, Boise, Salt Lake City, Albuquerque, El Paso, Edmonton, Calgary, Ciudad Juárez North America Canada (Mountain Time Zone) Alberta British Columbia The south-eastern communities of Cranbrook, Golden, Invermere and Kimberley Northwest Territories Nunavut Kitikmeot Region Saskatchewan Lloydminster Mexico Baja California Sur, Chihuahua, Nayarit and Sinaloa states United States (Mountain Time Zone) Arizona - Navajo Nation only Colorado Idaho South of Salmon River Kansas The western counties