Some other countries, such as Ireland, observe the same local time, but under a different name. The UK is the only country that observes BST in the summer. What About BST?ĭuring Daylight Saving Time, clocks in the United Kingdom are set forward one hour to British Summer Time (BST). Until 1972, time zones were defined by their offset from GMT based on mean solar time at the prime meridian in Greenwich near London. GMT is a time zone used in the UK and other European and African countries.Ī source of confusion is that GMT used to be the world's time standard before UTC was introduced.Since GMT has a UTC offset of zero, there is no time difference between the two. Time zones are defined by their offsets from UTC. UTC is a time standard that forms the base of time zones worldwide and is not used as a time zone in any country.However, there is an essential difference between the two: In practice, GMT and UTC share the same time on a clock, which can cause them to be interchanged or confused. London uses Greenwich Mean Time (GMT) during standard time and British Summer Time (BST) during Daylight Saving Time (DST), or summer time. The graph above illustrates clock changes in London during 2024. Business Date to Date (exclude holidays).^ 'Brazil: Acre and parts of Amazonas switch time zones'.^ a b 'Hora Oficial en los Estados Unidos Mexicanos' (in Spanish).^ a b 'Michigan Time Zone – Michigan Current Local Time – Daylight Saving Time'.^ a b c d e f g 'Time Zones of the United States'.^ a b 'Ontario Time Zone – Ontario Current Local Time – Daylight Saving Time'.Principal settlement: Hanga Roa East Pacific Atikokan and New Osnaburgh/ Pickle Lake areaĪs daylight saving time (Southern Hemisphere summer).Ecuador – Time in Ecuador (except Galápagos Islands).Amazonas (13 western municipalities, approximately marked by a line between Tabatinga and Porto Acre).Principal cities: Cancún, Bogotá, Lima, Kingston, Quito, Panama City, George Town South America Counties to the west of the counties of Scott, Morgan, Roane, Rhea, and Hamilton.The western counties of Dickinson, Gogebic, Iron and Menominee.The counties of Breckinridge, Grayson, Hart, Green, Adair, Russell and Clinton, and all counties to the west of these.

Entire state except westernmost counties.Southwestern counties of Gibson, Perry, Posey, Spencer, Vanderburgh and Warrick.Northwestern counties of Jasper, Lake, LaPorte, Newton, Porter and Starke.The counties of Bay, Calhoun, Escambia, Holmes, Jackson, Okaloosa, Santa Rosa, Walton, and Washington, and northern Gulf county (panhandle).The municipalities of Nuevo Laredo, Guerrero, Mier, Miguel Alemán, Camargo, Gustavo Díaz Ordaz, Reynosa, Río Bravo, Valle Hermoso and Matamoros.The municipalities of Acuña, Allende, Guerrero, Hidalgo, Jiménez, Morelos, Nava, Ocampo, Piedras Negras, Villa Unión and Zaragoza.The municipalities of Coyame del Sotol, Ojinaga and Manuel Benavides.All of Kivalliq Region ( Coral Harbour).Louis, Minneapolis, Austin, Memphis, Kansas City, San Antonio, Nashville, New Orleans, Milwaukee, Oklahoma City, Reynosa North America

Principal cities: Winnipeg, Regina, Chicago, Dallas, Houston, St.

The counties of Scott, Morgan, Roane, Rhea and Hamilton, and all counties to the east of these Īs daylight saving time (Northern Hemisphere summer).New England (states of Connecticut, Massachusetts, Maine, New Hampshire, Rhode Island and Vermont).Except the western counties of Dickinson, Gogebic, Iron and Menominee.Counties to the east of the counties of Breckinridge, Grayson, Hart, Green, Adair, Russell and Clinton.Except the northwestern counties of Jasper, Lake, LaPorte, Newton, Porter and Starke, and the southwestern counties of Gibson, Perry, Posey, Spencer, Vanderburgh and Warrick.Entire state except the counties of Bay, Calhoun, Escambia, Holmes, Jackson, Okaloosa, Santa Rosa, Walton, and Washington, and northern Gulf county (panhandle).Most of province except easternmost area.Principal cities: New York, Washington, Philadelphia, Boston, Atlanta, Miami, Detroit, Baltimore, Cleveland, Pittsburgh, Indianapolis, Orlando, Charlotte, Charleston, Wilmington, Key West, Toronto, Montreal, Ottawa, Quebec City, Iqaluit, Nassau, Havana, Kingston, Port-au-Prince, Cockburn Town, Providenciales North America The western Caribbean uses it year round.Īs standard time (Northern Hemisphere winter) In North America, it is observed in the Eastern Time Zone during standard time, and in the Central Time Zone during the other eight months (see Daylight saving time). UTC−05:00 is an identifier for a time offset from UTC of −05:00. Time in Indiana: Counties grouped by time zone. UTC−05:00: blue (January), orange (July), yellow (year-round), light blue (sea areas) Time in Nunavut

What time zone is gmt 5