America/Fortaleza

Time zone identifier: America/Fortaleza

Current civil offset: -03:00 (-03)

Current DST state: Observing Standard Time

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

Local Mean Time (LMT): -02:34 based on geographic meridian

Total recorded transitions: 39 transitions across 3 distinct offsets

Associated countries: BR

Historical Offset Step Chart (1880 to Present)

Text summary: America/Fortaleza 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
`1914-01-01T02:34:00Z`	`1913-12-31 23:34:00`	-02:34 → -03:00	`-03`	No	overlap
`1931-10-03T14:00:00Z`	`1931-10-03 12:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1932-04-01T02:00:00Z`	`1932-03-31 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1932-10-03T03:00:00Z`	`1932-10-03 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1933-04-01T02:00:00Z`	`1933-03-31 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1949-12-01T03:00:00Z`	`1949-12-01 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1950-04-16T03:00:00Z`	`1950-04-16 00:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1950-12-01T03:00:00Z`	`1950-12-01 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1951-04-01T02:00:00Z`	`1951-03-31 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1951-12-01T03:00:00Z`	`1951-12-01 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1952-04-01T02:00:00Z`	`1952-03-31 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1952-12-01T03:00:00Z`	`1952-12-01 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1953-03-01T02:00:00Z`	`1953-02-28 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1963-12-09T03:00:00Z`	`1963-12-09 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1964-03-01T02:00:00Z`	`1964-02-29 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1965-01-31T03:00:00Z`	`1965-01-31 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1965-03-31T02:00:00Z`	`1965-03-30 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1965-12-01T03:00:00Z`	`1965-12-01 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1966-03-01T02:00:00Z`	`1966-02-28 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1966-11-01T03:00:00Z`	`1966-11-01 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1967-03-01T02:00:00Z`	`1967-02-28 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1967-11-01T03:00:00Z`	`1967-11-01 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1968-03-01T02:00:00Z`	`1968-02-29 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1985-11-02T03:00:00Z`	`1985-11-02 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1986-03-15T02:00:00Z`	`1986-03-14 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1986-10-25T03:00:00Z`	`1986-10-25 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1987-02-14T02:00:00Z`	`1987-02-13 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1987-10-25T03:00:00Z`	`1987-10-25 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1988-02-07T02:00:00Z`	`1988-02-06 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1988-10-16T03:00:00Z`	`1988-10-16 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1989-01-29T02:00:00Z`	`1989-01-28 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1989-10-15T03:00:00Z`	`1989-10-15 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1990-02-11T02:00:00Z`	`1990-02-10 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1999-10-03T03:00:00Z`	`1999-10-03 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`2000-02-27T02:00:00Z`	`2000-02-26 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`2000-10-08T03:00:00Z`	`2000-10-08 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`2000-10-22T02:00:00Z`	`2000-10-21 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`2001-10-14T03:00:00Z`	`2001-10-14 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`2002-02-17T02:00:00Z`	`2002-02-16 23:00:00`	-02:00 → -03:00	`-03`	No	overlap

Notes from the Maintainers

Source: southamerica (Lines 991 to 993)

Maranhão (MA), Piauí (PI), Ceará (CE), Rio Grande do Norte (RN),
Paraíba (PB)

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.