UTC−06:00 is a time offset that subtracts six hours from Coordinated Universal Time (UTC). In North America, South 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.
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 (central)
Ontario (western)
United States - Central Time Zone
Alabama, Arkansas, Illinois, Iowa, Louisiana, Minnesota, Mississippi, Missouri, Wisconsin, Oklahoma
most of Kansas, Nebraska, North Dakota, South Dakota, most of Tennessee, most of Texas
western portions of Florida, Indiana, Kentucky, Michigan
small portions of Indiana
Mexico - Central Zone
All of the states, plus the Federal District
Canada - Mountain Time Zone
Alberta
British Columbia (southeastern region)
Northwest Territories (most of territory)
Nunavut (western)
Saskatchewan – only Lloydminster and surrounding area
United States - Mountain Time Zone
Colorado, Montana, New Mexico, Utah, Wyoming
Navajo Nation, extending into Arizona
Most of Idaho (southern section)
Western parts of Kansas, Nebraska, South Dakota, Texas
Southwestern parts of North Dakota
Small parts in east of Oregon and Nevada
Mexico - Pacific Zone
Baja California Sur
Chihuahua
Nayarit (most of state)
Sinaloa
Canada
Saskatchewan (except Lloydminster and surrounding area)
Belize
Costa Rica
El Salvador
Guatemala
Honduras
Nicaragua
Called Central America Time Zone
Ecuador
Galápagos Province
Chile
Easter Island and Isla Salas y Gómez
