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UTC−04:00 is a time offset that subtracts 4 hours from Coordinated Universal Time (UTC). It is observed in the Eastern Time Zone (e.g., Canada and the United States) during the warm months of daylight saving time, as Eastern Daylight Time. The Atlantic Time Zone observes it during standard time (cold months). It is observed all year in the Eastern Caribbean.

Contents

1 As standard time (Northern Hemisphere winter)

1.1 North America

2 As daylight saving time (Northern Hemisphere summer)

2.1 North America 2.2 Caribbean

3 As standard time (all year round)

3.1 North America 3.2 Eastern Caribbean 3.3 US territories 3.4 Other Caribbean 3.5 South America

4 As standard time (Southern Hemisphere winter)

4.1 South America 4.2 Antarctica

5 See also 6 References

As standard time (Northern Hemisphere winter)[edit] Principal cities: Halifax North America[edit]

 Greenland ( Denmark) - Atlantic Time Zone

Thule Air Base (observes United States daylight saving time rules)

 Canada - Atlantic Time Zone

all of New Brunswick (legally offset from GMT[1]), Nova Scotia (legally offset from GMT[2]), Prince Edward Island Newfoundland and Labrador - most of Labrador

 Bermuda ( UK) - Atlantic Time Zone

As daylight saving time (Northern Hemisphere summer)[edit] Principal cities: New York City, Toronto, Havana North America[edit]

 Canada - Eastern Time Zone

Nunavut (eastern), most of Ontario and most of Quebec

 United States - Eastern Time Zone

All of Connecticut, Delaware, District of Columbia, Georgia, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Vermont, Virginia, West Virginia Most of Florida, Indiana, Michigan Eastern parts of Kentucky, Tennessee Unofficial use in several communities in Russell County, Alabama, including Phenix City. Although the legal time for all of Alabama from the last weeks of the northern winter to mid-autumn is Central Daylight Time (UTC–5), Phenix City and its surrounding communities informally synchronize their clocks with the considerably larger city of Columbus, Georgia, directly across the Chattahoochee River from Phenix City.[citation needed]

Caribbean[edit]

 Bahamas  Cuba  Haiti

As standard time (all year round)[edit] Principal cities: Caracas, Santo Domingo, La Paz North America[edit]

 Canada - Atlantic Time Zone

Quebec (east of the 63°W longitude)

Eastern Caribbean[edit] Main article: Eastern Caribbean Time Zone

 Anguilla (UK)  Antigua and Barbuda  Barbados  Dominica  Dominican Republic  Grenada  Guadeloupe (France)  Martinique (France)  Montserrat (UK)  Saba (Netherlands)  Saint-Barthélemy (France)  Saint Kitts and Nevis  Saint Lucia  Saint-Martin (France)  Saint Vincent and the Grenadines  Sint Eustatius (Netherlands)  Sint Maarten (Netherlands)  Trinidad and Tobago  British Virgin Islands (UK)

US territories[edit] See also: Atlantic Time Zone

 Puerto Rico (US)  U.S. Virgin Islands (US)

Other Caribbean[edit]

 Aruba (Netherlands)  Bonaire (Netherlands)  Curaçao (Netherlands)  Turks and Caicos (UK)

South America[edit]

 Bolivia  Brazil

Amazonas (except southwestern portion), Rondônia, Roraima[3][4]

 Guyana  Venezuela[5]

As standard time (Southern Hemisphere winter)[edit] Principal cities: Santiago South America[edit]

Brazil

Mato Grosso, Mato Grosso do Sul[3][4]

Chile (except Magallanes region and Antarctic territory) Paraguay

Antarctica[edit]

Some bases in Antarctica. See also Time in Antarctica

See also[edit]

Time in Brazil Time in Canada Time in Chile Time in Denmark Time in Mexico Time in the United States Time in Venezuela

References[edit]

^ "CHAPTER T-6 - Time Definition Act". Retrieved 2008-06-02.  ^ "Time Definition Act". Retrieved 2008-06-02.  ^ a b "Current Time Zone". Brazil Considers Having Only One Time Zone. Time and Date. 21 July 2009. Retrieved 16 June 2012.  ^ a b "Hora Legal Brasileira". Horário de Verão (in Portuguese). Observatório Nacional. Retrieved 16 June 2012.  ^ "Venezuela Time Zone". Venezuela Changes Time Zone To Save Electricity. Sky News. 16 April 2016. Retrieved 16 April 2016. 

v t e

Coordinated Universal Time (UTC)

UTC offset for standard time and Daylight saving time (DST) Italics: historical or unofficial

180° to < 90°W

−12:00 −11:00 −10:30 −10:00 −09:30 −09:00 −08:30 −08:00 −07:00

90°W to < 0°

−06:00 −05:00 −04:30 −04:00 −03:30 −03:00 −02:30 −02:00 −01:00 −00:44 −00:25:21

0° to < 90°E

±00:00 +00:20 +00:30 +01:00 +01:24 +01:30 +02:00 +02:30 +03:00 +03:30 +04:00 +04:30 +04:51 +05:00 +05:30 +05:40 +05:45

90°E to < 180°

+06:00 +06:30 +07:00 +07:20 +07:30 +08:00 +08:30 +08:45 +09:00 +09:30 +09:45 +10:00 +10:30 +11:00 +11:30

(180° to < 90°W)

+12:00 +12:45 +13:00 +13:45 +14:00

Time zone data sources

tz database

Lists of time zones

Time zones by country Time zones by UTC offset tz database time zones Military time zones Time zone abbreviations Daylight savi

.