Reference articles on history, science, culture and more
Surprise meSurprise meSubscribe
Encyclopedia

UTC−03:00

Time zone

Wikipedia contributorsAdapted for Fathomly · View authors
1 min read
Source updated March 19, 2026
Image credit is listed at the end of this article.

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

01As standard time (Northern Hemisphere winter)

Europe

Atlantic Ocean

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: Halifax, Saint John, Fredericton, Hamilton, Sydney

North America

03As standard time (year-round)

Principal cities: Cayenne, São Paulo, Brasília, Rio de Janeiro, Porto Alegre, Belo Horizonte, Buenos Aires, Montevideo, Paramaribo, Stanley, Asunción

South America

Antarctica

Southern Ocean

04As daylight saving time (Southern Hemisphere summer)

Principal cities: Santiago

South America

Antarctica

05Places using UTC−03:00, outside the 45°W ± 7.5° range

Watch videos about UTC−03:00Explainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article “UTC−03:00”, 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:

Fathomly is not affiliated with or endorsed by the Wikimedia Foundation. Spotted a problem? Tell us.

Continue exploring

Related topics

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.

Time in Brazil

Time in Brazil is calculated using standard time, and the country is divided into four standard time zones: Fernando de Noronha time (UTC−02:00), Brasília time (UTC−03:00), Amazon time (UTC−04:00), and Acre time (UTC−05:00). About 93% of the Brazilian population live in Brasília time (UTC−03:00).

Time in Canada

Canada is divided into five time zones: Mountain, Central, Eastern, Atlantic and Newfoundland time. Many areas of the country's provinces and territories operate on standard time from the first Sunday in November to the second Sunday in March and daylight saving time the rest of the year.