America/Noronha

Time zone identifier: America/Noronha

Current civil offset: -02:00 (-02)

Current DST state: Observing Standard Time

First standard time adoption: Adopted on 1914-01-01

Local Mean Time (LMT): -02:09:40 based on geographic meridian

Total recorded transitions: 39 transitions across 3 distinct offsets

Associated countries: BR

Aliases (Link targets): Brazil/DeNoronha

Historical Offset Step Chart (1880 to Present)

Text summary: America/Noronha shifted between 3 distinct offsets from 1914-01-01 through the modern era.

Complete Transition History (39 Transitions)

UTC Instant	Local Wall Time	Shift	Abbreviation	DST	Effect
`1914-01-01T02:09:40Z`	`1914-01-01 00:09:40`	-02:09:40 → -02:00	`-02`	No	gap
`1931-10-03T13:00:00Z`	`1931-10-03 12:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1932-04-01T01:00:00Z`	`1932-03-31 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1932-10-03T02:00:00Z`	`1932-10-03 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1933-04-01T01:00:00Z`	`1933-03-31 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1949-12-01T02:00:00Z`	`1949-12-01 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1950-04-16T02:00:00Z`	`1950-04-16 00:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1950-12-01T02:00:00Z`	`1950-12-01 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1951-04-01T01:00:00Z`	`1951-03-31 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1951-12-01T02:00:00Z`	`1951-12-01 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1952-04-01T01:00:00Z`	`1952-03-31 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1952-12-01T02:00:00Z`	`1952-12-01 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1953-03-01T01:00:00Z`	`1953-02-28 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1963-12-09T02:00:00Z`	`1963-12-09 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1964-03-01T01:00:00Z`	`1964-02-29 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1965-01-31T02:00:00Z`	`1965-01-31 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1965-03-31T01:00:00Z`	`1965-03-30 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1965-12-01T02:00:00Z`	`1965-12-01 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1966-03-01T01:00:00Z`	`1966-02-28 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1966-11-01T02:00:00Z`	`1966-11-01 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1967-03-01T01:00:00Z`	`1967-02-28 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1967-11-01T02:00:00Z`	`1967-11-01 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1968-03-01T01:00:00Z`	`1968-02-29 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1985-11-02T02:00:00Z`	`1985-11-02 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1986-03-15T01:00:00Z`	`1986-03-14 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1986-10-25T02:00:00Z`	`1986-10-25 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1987-02-14T01:00:00Z`	`1987-02-13 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1987-10-25T02:00:00Z`	`1987-10-25 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1988-02-07T01:00:00Z`	`1988-02-06 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1988-10-16T02:00:00Z`	`1988-10-16 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1989-01-29T01:00:00Z`	`1989-01-28 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1989-10-15T02:00:00Z`	`1989-10-15 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`1990-02-11T01:00:00Z`	`1990-02-10 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`1999-10-03T02:00:00Z`	`1999-10-03 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`2000-02-27T01:00:00Z`	`2000-02-26 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`2000-10-08T02:00:00Z`	`2000-10-08 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`2000-10-15T01:00:00Z`	`2000-10-14 23:00:00`	-01:00 → -02:00	`-02`	No	overlap
`2001-10-14T02:00:00Z`	`2001-10-14 01:00:00`	-02:00 → -01:00	`-01`	Yes	gap
`2002-02-17T01:00:00Z`	`2002-02-16 23:00:00`	-01:00 → -02:00	`-02`	No	overlap

Notes from the Maintainers

Source: southamerica (Lines 947 to 962)

The last ruleset listed above says that the following states observed DST:
DF, ES, GO, MG, MS, MT, PR, RJ, RS, SC, SP.

From Steffen Thorsen (2019-04-05):
According to multiple sources the Brazilian president wants to get rid of DST.
https://gmconline.com.br/noticias/politica/bolsonaro-horario-de-verao-deve-acabar-este-ano
https://g1.globo.com/economia/noticia/2019/04/05/governo-anuncia-fim-do-horario-de-verao.ghtml
From Marcus Diniz (2019-04-25):
Brazil no longer has DST changes - decree signed today
https://g1.globo.com/politica/noticia/2019/04/25/bolsonaro-assina-decreto-que-acaba-com-o-horario-de-verao.ghtml
From Daniel Soares de Oliveira (2019-04-26):
http://www.planalto.gov.br/ccivil_03/_Ato2019-2022/2019/Decreto/D9772.htm

Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]

Fernando de Noronha (administratively part of PE)

Attributed Statements:

Steffen Thorsen (2019-04-05):

According to multiple sources the Brazilian president wants to get rid of DST. https://gmconline.com.br/noticias/politica/bolsonaro-horario-de-verao-deve-acabar-este-ano https://g1.globo.com/economia/noticia/2019/04/05/governo-anuncia-fim-do-horario-de-verao.ghtml

Marcus Diniz (2019-04-25):

Brazil no longer has DST changes - decree signed today https://g1.globo.com/politica/noticia/2019/04/25/bolsonaro-assina-decreto-que-acaba-com-o-horario-de-verao.ghtml

Daniel Soares de Oliveira (2019-04-26):

http://www.planalto.gov.br/ccivil_03/_Ato2019-2022/2019/Decreto/D9772.htm Zone NAME STDOFF RULES FORMAT [UNTIL] Fernando de Noronha (administratively part of PE)

Years on Record

Methodology Note: The 1970 Rule

tzdb guarantees accuracy for timestamps from 1970 onwards. Transitions prior to 1970 represent best-effort historical reconstructions.