Brazil has four time zones. It also observes summer time; however, not only do the starting and ending dates often change from year to year, it is also not followed by all states (which ones observe summer time can change from year to year). A time zone is a region of the Earth that has adopted the same standard time, usually referred to as the local time. ...  Areas that observe daylight saving time  Areas that once observed daylight saving time  Areas that have never observed daylight saving time A 2001 public service announcement for the upcoming turning back of the clocks Daylight saving time (DST), also known as summer time in British English, is the convention of... Brazil is divided into twenty-six estados (states; singular estado) and one district, the Distrito Federal (Federal District) which contains the capital city, Brasília. ...

Time zones

Brasília time

The main time zone of Brazil corresponds to the time at Brasília. All the other time zones are given as offsets to it. Outside of summer time, it corresponds to UTC-3; during summer time, it changes to UTC-2, but this change is not followed by all states. It is normally followed by the Southeast Region, the South Region, the North Region (except some islands), Goiás, Distrito Federal, Tocantins, the east side of Pará (including the city of Belém), and Amapá. Brasilia is the national capital of Brazil. ... -12 | -11 | -10 | -9:30 | -9 | -8 | -7 | -6 | -5 | -4 | -3:30 | -3 | -2:30 | -2 | -1 | UTC | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7:30 | +8 | +8... UTC − 2 time zone for: Brazil - Ocean Islands Fernando de Noronha, Trindade, Martim Vaz, etc. ... This article or section does not cite its references or sources. ... The South Region is highlighted in yellow. ... Image:Brasil Norte vincent harley rocks maploc. ... Flag of Goiás See other Brazilian States Capital Goiânia Largest City Goiânia Area 341 289 km² Population   - Total   - Density 4 848 725 14. ... Federal Districts are subdivisions of a federal system of government. ... Tocantins can refer to: Tocantins State Tocantins River This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ... Flag of Pará See other Brazilian States Capital Belém Largest City Belém Area 1. ... Nickname: Belém do Pará Local da cidade de Belém, no estado do Pará State Pará County Belém  - Mayor Duciomar Gomes da Costa Area    - City 1,070 km²  - Land 1,214. ... Flag of Amapá See other Brazilian States Capital Macapá Largest City Macapá Area 142 816 km² Population   - Total   - Density 477 032 3. ...

Brasília time + 1

This time zone corresponds to UTC-2. It is used on a few islands on the east coast of Brazil (Fernando de Noronha, Trindade, Martin Vaz, Atol das Rocas, Saint Peter and Paul Rocks). UTC − 2 time zone for: Brazil - Ocean Islands Fernando de Noronha, Trindade, Martim Vaz, etc. ... Aerial view of the island from the north east Image:Orthographic projection centred over Fernando de Noronha Fernando de Noronha is an archipelago in the Atlantic Ocean, around 220 miles (354 km) offshore from the Brazilian coast. ... This article is on the island of Trindade. ... Martin Vaz The group of the Martin Vaz Islands is located about 47 km east of Ilha do Trindade and adminstered by the Brasilian Atlantic Ocean Devision, under the judicative of the Brasilian Military. ... Categories: Possible copyright violations ... The Saint Peter and Paul Rocks lie near the middle of the Atlantic Narrows. ...

Brasília time - 1

Outside of summer time, this time zone corresponds to UTC-4. It is used in the west side of Pará, most of Amazonas (all but the southwestern part, including the city of Manaus), Mato Grosso, Mato Grosso do Sul, Rondônia, and Roraima. for North America see also: Atlantic Standard Time Zone and Eastern Daylight Time Categories: Time zones ... Flag of Pará See other Brazilian States Capital Belém Largest City Belém Area 1. ... Flag of Amazonas See other Brazilian States Capital Manaus Largest City Manaus Area 1 570 947 km² Population   - Total   - Density 3,332,330 inh. ... Location in Brazil Country Brazil Region North State Amazonas Founded 1669 Mayor Serafim Corrêa (PSB) Area    - City 11. ... Flag of Mato Grosso See other Brazilian States Capital Cuiabá Largest City Cuiabá Area 906,806. ... Flag of Mato Grosso do Sul See other Brazilian States Capital Campo Grande Largest City Campo Grande Area 358,158. ... Flag of Rondônia See other Brazilian States Capital Porto Velho Largest City Porto Velho Area 238,512. ... Flag of Roraima See other Brazilian States Capital Boa Vista Largest City Boa Vista Area 225,116. ...

Brasília time - 2

Outside of summer time, this time zone corresponds to UTC-5. It is used in the southwestern part of Amazonas, and in Acre. -12 | -11 | -10 | -9:30 | -9 | -8 | -7 | -6 | -5 | -4 | -3:30 | -3 | -2:30 | -2 | -1 | -0:25 | UTC (0) | +0:20 | +0:30 | +1 | +2 | +3 | +3:30 | +4 | +4:30 | +4:51 | +5 | +5:30 | +5:40 | +5:45 | +6 | +6:30 | +7 | +7:20 | +7... Flag of Amazonas See other Brazilian States Capital Manaus Largest City Manaus Area 1 570 947 km² Population   - Total   - Density 3,332,330 inh. ... Flag of Acre See other Brazilian States Capital Rio Branco Largest City Rio Branco Area 152 522 km² Population   - Total   - Density 557 526 3. ...

Summer time

There are no fixed start and end dates for summer time; they are decided every year by one or more decrees. The same decree(s) also say which states should or should not change their clocks. Sometimes these decrees are published very close to the start date, or even after it^[1].

In the states which follow summer time, the clock is moved forward by one hour between the start and end dates; the other states (or parts of states) do not change their clocks, which results on a change of the offset to Brasília time.

History

Summer time in Brazil was first adopted in 1931^[2]. Initially, it applied to the whole country (with an exception in part of 1963); since 1988, it started being used only in part of the country^[1].

See also

• The zoneinfo database has detailed time zone information for Brazil
• List of time zones

The zoneinfo database, also called the tz database, is a collaborative compilation of information about the worlds time zones, primarily intended for use with computer programs and operating systems. ... // This is a list of time zones, sorted by time offsets from Coordinated Universal Time (UTC). ...

References

1. ^ ^{a b} Decretos sobre o Horário de Verão no Brasil (Portuguese). Retrieved on 2007-01-23.
2. ^ HISTÓRICO DO HORÁRIO DE VERÃO (Portuguese). Retrieved on 2007-01-23.

2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD (or CE) era. ... January 23 is the 23rd day of the year in the Gregorian calendar. ... 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD (or CE) era. ... January 23 is the 23rd day of the year in the Gregorian calendar. ...

External links

• Divisão do Serviço da Hora do Observatório Nacional
  • Fusos Horários no BRASIL