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UTC−04:00

Time zone

Wikipedia contributorsAdapted for Fathomly · View authors
2 min read
Source updated July 23, 2026
Image credit is listed at the end of this article.

UTC−04:00 is an identifier for a time offset from UTC of −04:00.

It is observed in the Eastern Time Zone (e.g., in Canada and the United States) during daylight saving time, as Eastern Daylight Time. The Atlantic Time Zone observes it during standard time.

It is observed all year in the Eastern Caribbean and several South American countries.

01As standard time (Northern Hemisphere winter)

Principal cities: Halifax, Saint John, Fredericton, Hamilton

North America

Time in Brazil, since 25 April 2019 Time in Brazil ACT Acre Time UTC−5 (BRT-2) AMT Amazon Time UTC−4 (BRT−1) BRT Brasília Time UTC−3 (BRT) FNT Fernando de Noronha Time UTC−2 (BRT+1)
Time in Brazil, since 25 April 2019 Time in Brazil ACT Acre Time UTC−5 (BRT-2) AMT Amazon Time UTC−4 (BRT−1) BRT Brasília Time UTC−3 (BRT) FNT Fernando de Noronha Time UTC−2 (BRT+1)

02As daylight saving time (Northern Hemisphere summer)

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

Caribbean

03As standard time (year-round)

Principal cities: Caracas, Manaus, La Paz, Georgetown, Santa Cruz de la Sierra, St. John's, Bridgetown, Roseau, Santo Domingo, Gustavia, St. George's, The Bottom, Oranjestad, Philipsburg, Lower Prince's Quarter, Basseterre, Castries, Kingstown, Port of Spain, San Fernando, The Valley, Road Town, Plymouth, Brades, Little Bay, San Juan, Charlotte Amalie, Oranjestad, Kralendijk, Willemstad, Pointe-à-Pitre, Les Abymes, Fort-de-France, Maracaibo, Blanc-Sablon, Harrington Harbour

South America

Eastern Caribbean

US territories

Other Caribbean locales

North America

Antarctica

Southern Ocean

04As standard time (Southern Hemisphere winter)

Principal cities: Santiago

South America

Antarctica

Watch videos about UTC−04:00Explainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article “UTC−04:00”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

Images, from Wikimedia Commons:

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Related topics

UTC−05:00

UTC−05:00 is an identifier for a time offset from UTC of −05:00. 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.

UTC−03:00

UTC−03:00 is an identifier for a time offset from UTC of −03:00.

Time in Argentina

Argentina is located at a longitude that would naturally put it in the UTC−04:00 or UTC−05:00 time zone; however, it actually uses the UTC−03:00 time zone. Argentina determines whether to change clocks in observation of daylight saving time on a year-by-year basis, and individual provinces may opt out of the federal decision.