America/St_Johns

Time zone identifier: America/St_Johns

Current civil offset: -03:30 (NST)

Current DST state: Observing Standard Time

First standard time adoption: Adopted on 1884-01-01

Local Mean Time (LMT): -03:30:52 based on geographic meridian

Total recorded transitions: 239 transitions across 5 distinct offsets

Associated countries: CA

Aliases (Link targets): Canada/Newfoundland

Historical Offset Step Chart (1880 to Present)

Text summary: America/St_Johns shifted between 5 distinct offsets from 1884-01-01 through the modern era.

Complete Transition History (239 Transitions)

UTC Instant	Local Wall Time	Shift	Abbreviation	DST	Effect
`1884-01-01T03:30:52Z`	`1884-01-01 00:00:00`	-03:30:52 → -03:30:52	`NST`	No	offset-only
`1917-04-08T05:30:52Z`	`1917-04-08 03:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1917-09-17T04:30:52Z`	`1917-09-17 01:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1918-04-14T05:30:52Z`	`1918-04-14 03:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1918-10-27T04:30:52Z`	`1918-10-27 01:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1919-05-06T02:30:52Z`	`1919-05-06 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1919-08-13T01:30:52Z`	`1919-08-12 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1920-05-03T02:30:52Z`	`1920-05-03 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1920-11-01T01:30:52Z`	`1920-10-31 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1921-05-02T02:30:52Z`	`1921-05-02 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1921-10-31T01:30:52Z`	`1921-10-30 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1922-05-08T02:30:52Z`	`1922-05-08 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1922-10-30T01:30:52Z`	`1922-10-29 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1923-05-07T02:30:52Z`	`1923-05-07 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1923-10-29T01:30:52Z`	`1923-10-28 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1924-05-05T02:30:52Z`	`1924-05-05 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1924-10-27T01:30:52Z`	`1924-10-26 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1925-05-04T02:30:52Z`	`1925-05-04 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1925-10-26T01:30:52Z`	`1925-10-25 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1926-05-03T02:30:52Z`	`1926-05-03 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1926-11-01T01:30:52Z`	`1926-10-31 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1927-05-02T02:30:52Z`	`1927-05-02 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1927-10-31T01:30:52Z`	`1927-10-30 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1928-05-07T02:30:52Z`	`1928-05-07 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1928-10-29T01:30:52Z`	`1928-10-28 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1929-05-06T02:30:52Z`	`1929-05-06 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1929-10-28T01:30:52Z`	`1929-10-27 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1930-05-05T02:30:52Z`	`1930-05-05 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1930-10-27T01:30:52Z`	`1930-10-26 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1931-05-04T02:30:52Z`	`1931-05-04 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1931-10-26T01:30:52Z`	`1931-10-25 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1932-05-02T02:30:52Z`	`1932-05-02 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1932-10-31T01:30:52Z`	`1932-10-30 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1933-05-08T02:30:52Z`	`1933-05-08 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1933-10-30T01:30:52Z`	`1933-10-29 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1934-05-07T02:30:52Z`	`1934-05-07 00:00:00`	-03:30:52 → -02:30:52	`NDT`	Yes	gap
`1934-10-29T01:30:52Z`	`1934-10-28 22:00:00`	-02:30:52 → -03:30:52	`NST`	No	overlap
`1935-03-30T03:30:52Z`	`1935-03-30 00:00:52`	-03:30:52 → -03:30	`NST`	No	gap
`1935-05-06T02:30:00Z`	`1935-05-06 00:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1935-10-28T01:30:00Z`	`1935-10-27 22:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1936-05-11T03:30:00Z`	`1936-05-11 01:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1936-10-05T02:30:00Z`	`1936-10-04 23:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1937-05-10T03:30:00Z`	`1937-05-10 01:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1937-10-04T02:30:00Z`	`1937-10-03 23:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1938-05-09T03:30:00Z`	`1938-05-09 01:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1938-10-03T02:30:00Z`	`1938-10-02 23:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1939-05-15T03:30:00Z`	`1939-05-15 01:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1939-10-02T02:30:00Z`	`1939-10-01 23:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1940-05-13T03:30:00Z`	`1940-05-13 01:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1940-10-07T02:30:00Z`	`1940-10-06 23:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1941-05-12T03:30:00Z`	`1941-05-12 01:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1941-10-06T02:30:00Z`	`1941-10-05 23:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1942-05-11T03:30:00Z`	`1942-05-11 01:00:00`	-03:30 → -02:30	`NWT`	Yes	gap
`1945-08-14T23:00:00Z`	`1945-08-14 20:30:00`	-02:30 → -02:30	`NPT`	Yes	offset-only
`1945-09-30T04:30:00Z`	`1945-09-30 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1946-05-12T05:30:00Z`	`1946-05-12 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1946-10-06T04:30:00Z`	`1946-10-06 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1947-05-11T05:30:00Z`	`1947-05-11 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1947-10-05T04:30:00Z`	`1947-10-05 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1948-05-09T05:30:00Z`	`1948-05-09 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1948-10-03T04:30:00Z`	`1948-10-03 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1949-05-08T05:30:00Z`	`1949-05-08 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1949-10-02T04:30:00Z`	`1949-10-02 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1950-05-14T05:30:00Z`	`1950-05-14 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1950-10-08T04:30:00Z`	`1950-10-08 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1951-04-29T05:30:00Z`	`1951-04-29 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1951-09-30T04:30:00Z`	`1951-09-30 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1952-04-27T05:30:00Z`	`1952-04-27 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1952-09-28T04:30:00Z`	`1952-09-28 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1953-04-26T05:30:00Z`	`1953-04-26 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1953-09-27T04:30:00Z`	`1953-09-27 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1954-04-25T05:30:00Z`	`1954-04-25 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1954-09-26T04:30:00Z`	`1954-09-26 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1955-04-24T05:30:00Z`	`1955-04-24 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1955-09-25T04:30:00Z`	`1955-09-25 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1956-04-29T05:30:00Z`	`1956-04-29 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1956-09-30T04:30:00Z`	`1956-09-30 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1957-04-28T05:30:00Z`	`1957-04-28 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1957-09-29T04:30:00Z`	`1957-09-29 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1958-04-27T05:30:00Z`	`1958-04-27 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1958-09-28T04:30:00Z`	`1958-09-28 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1959-04-26T05:30:00Z`	`1959-04-26 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1959-09-27T04:30:00Z`	`1959-09-27 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1960-04-24T05:30:00Z`	`1960-04-24 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1960-10-30T04:30:00Z`	`1960-10-30 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1961-04-30T05:30:00Z`	`1961-04-30 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1961-10-29T04:30:00Z`	`1961-10-29 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1962-04-29T05:30:00Z`	`1962-04-29 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1962-10-28T04:30:00Z`	`1962-10-28 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1963-04-28T05:30:00Z`	`1963-04-28 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1963-10-27T04:30:00Z`	`1963-10-27 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1964-04-26T05:30:00Z`	`1964-04-26 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1964-10-25T04:30:00Z`	`1964-10-25 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1965-04-25T05:30:00Z`	`1965-04-25 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1965-10-31T04:30:00Z`	`1965-10-31 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1966-04-24T05:30:00Z`	`1966-04-24 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1966-10-30T04:30:00Z`	`1966-10-30 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1967-04-30T05:30:00Z`	`1967-04-30 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1967-10-29T04:30:00Z`	`1967-10-29 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1968-04-28T05:30:00Z`	`1968-04-28 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1968-10-27T04:30:00Z`	`1968-10-27 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1969-04-27T05:30:00Z`	`1969-04-27 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1969-10-26T04:30:00Z`	`1969-10-26 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1970-04-26T05:30:00Z`	`1970-04-26 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1970-10-25T04:30:00Z`	`1970-10-25 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1971-04-25T05:30:00Z`	`1971-04-25 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1971-10-31T04:30:00Z`	`1971-10-31 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1972-04-30T05:30:00Z`	`1972-04-30 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1972-10-29T04:30:00Z`	`1972-10-29 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1973-04-29T05:30:00Z`	`1973-04-29 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1973-10-28T04:30:00Z`	`1973-10-28 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1974-04-28T05:30:00Z`	`1974-04-28 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1974-10-27T04:30:00Z`	`1974-10-27 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1975-04-27T05:30:00Z`	`1975-04-27 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1975-10-26T04:30:00Z`	`1975-10-26 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1976-04-25T05:30:00Z`	`1976-04-25 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1976-10-31T04:30:00Z`	`1976-10-31 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1977-04-24T05:30:00Z`	`1977-04-24 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1977-10-30T04:30:00Z`	`1977-10-30 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1978-04-30T05:30:00Z`	`1978-04-30 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1978-10-29T04:30:00Z`	`1978-10-29 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1979-04-29T05:30:00Z`	`1979-04-29 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1979-10-28T04:30:00Z`	`1979-10-28 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1980-04-27T05:30:00Z`	`1980-04-27 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1980-10-26T04:30:00Z`	`1980-10-26 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1981-04-26T05:30:00Z`	`1981-04-26 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1981-10-25T04:30:00Z`	`1981-10-25 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1982-04-25T05:30:00Z`	`1982-04-25 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1982-10-31T04:30:00Z`	`1982-10-31 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1983-04-24T05:30:00Z`	`1983-04-24 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1983-10-30T04:30:00Z`	`1983-10-30 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1984-04-29T05:30:00Z`	`1984-04-29 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1984-10-28T04:30:00Z`	`1984-10-28 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1985-04-28T05:30:00Z`	`1985-04-28 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1985-10-27T04:30:00Z`	`1985-10-27 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1986-04-27T05:30:00Z`	`1986-04-27 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1986-10-26T04:30:00Z`	`1986-10-26 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`1987-04-05T03:31:00Z`	`1987-04-05 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1987-10-25T02:31:00Z`	`1987-10-24 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`1988-04-03T03:31:00Z`	`1988-04-03 02:01:00`	-03:30 → -01:30	`NDDT`	Yes	gap
`1988-10-30T01:31:00Z`	`1988-10-29 22:01:00`	-01:30 → -03:30	`NST`	No	overlap
`1989-04-02T03:31:00Z`	`1989-04-02 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1989-10-29T02:31:00Z`	`1989-10-28 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`1990-04-01T03:31:00Z`	`1990-04-01 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1990-10-28T02:31:00Z`	`1990-10-27 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`1991-04-07T03:31:00Z`	`1991-04-07 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1991-10-27T02:31:00Z`	`1991-10-26 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`1992-04-05T03:31:00Z`	`1992-04-05 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1992-10-25T02:31:00Z`	`1992-10-24 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`1993-04-04T03:31:00Z`	`1993-04-04 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1993-10-31T02:31:00Z`	`1993-10-30 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`1994-04-03T03:31:00Z`	`1994-04-03 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1994-10-30T02:31:00Z`	`1994-10-29 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`1995-04-02T03:31:00Z`	`1995-04-02 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1995-10-29T02:31:00Z`	`1995-10-28 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`1996-04-07T03:31:00Z`	`1996-04-07 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1996-10-27T02:31:00Z`	`1996-10-26 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`1997-04-06T03:31:00Z`	`1997-04-06 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1997-10-26T02:31:00Z`	`1997-10-25 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`1998-04-05T03:31:00Z`	`1998-04-05 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1998-10-25T02:31:00Z`	`1998-10-24 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`1999-04-04T03:31:00Z`	`1999-04-04 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`1999-10-31T02:31:00Z`	`1999-10-30 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`2000-04-02T03:31:00Z`	`2000-04-02 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2000-10-29T02:31:00Z`	`2000-10-28 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`2001-04-01T03:31:00Z`	`2001-04-01 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2001-10-28T02:31:00Z`	`2001-10-27 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`2002-04-07T03:31:00Z`	`2002-04-07 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2002-10-27T02:31:00Z`	`2002-10-26 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`2003-04-06T03:31:00Z`	`2003-04-06 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2003-10-26T02:31:00Z`	`2003-10-25 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`2004-04-04T03:31:00Z`	`2004-04-04 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2004-10-31T02:31:00Z`	`2004-10-30 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`2005-04-03T03:31:00Z`	`2005-04-03 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2005-10-30T02:31:00Z`	`2005-10-29 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`2006-04-02T03:31:00Z`	`2006-04-02 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2006-10-29T02:31:00Z`	`2006-10-28 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`2007-03-11T03:31:00Z`	`2007-03-11 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2007-11-04T02:31:00Z`	`2007-11-03 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`2008-03-09T03:31:00Z`	`2008-03-09 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2008-11-02T02:31:00Z`	`2008-11-01 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`2009-03-08T03:31:00Z`	`2009-03-08 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2009-11-01T02:31:00Z`	`2009-10-31 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`2010-03-14T03:31:00Z`	`2010-03-14 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2010-11-07T02:31:00Z`	`2010-11-06 23:01:00`	-02:30 → -03:30	`NST`	No	overlap
`2011-03-13T03:31:00Z`	`2011-03-13 01:01:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2011-11-06T04:30:00Z`	`2011-11-06 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2012-03-11T05:30:00Z`	`2012-03-11 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2012-11-04T04:30:00Z`	`2012-11-04 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2013-03-10T05:30:00Z`	`2013-03-10 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2013-11-03T04:30:00Z`	`2013-11-03 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2014-03-09T05:30:00Z`	`2014-03-09 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2014-11-02T04:30:00Z`	`2014-11-02 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2015-03-08T05:30:00Z`	`2015-03-08 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2015-11-01T04:30:00Z`	`2015-11-01 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2016-03-13T05:30:00Z`	`2016-03-13 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2016-11-06T04:30:00Z`	`2016-11-06 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2017-03-12T05:30:00Z`	`2017-03-12 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2017-11-05T04:30:00Z`	`2017-11-05 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2018-03-11T05:30:00Z`	`2018-03-11 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2018-11-04T04:30:00Z`	`2018-11-04 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2019-03-10T05:30:00Z`	`2019-03-10 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2019-11-03T04:30:00Z`	`2019-11-03 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2020-03-08T05:30:00Z`	`2020-03-08 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2020-11-01T04:30:00Z`	`2020-11-01 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2021-03-14T05:30:00Z`	`2021-03-14 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2021-11-07T04:30:00Z`	`2021-11-07 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2022-03-13T05:30:00Z`	`2022-03-13 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2022-11-06T04:30:00Z`	`2022-11-06 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2023-03-12T05:30:00Z`	`2023-03-12 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2023-11-05T04:30:00Z`	`2023-11-05 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2024-03-10T05:30:00Z`	`2024-03-10 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2024-11-03T04:30:00Z`	`2024-11-03 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2025-03-09T05:30:00Z`	`2025-03-09 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2025-11-02T04:30:00Z`	`2025-11-02 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2026-03-08T05:30:00Z`	`2026-03-08 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2026-11-01T04:30:00Z`	`2026-11-01 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2027-03-14T05:30:00Z`	`2027-03-14 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2027-11-07T04:30:00Z`	`2027-11-07 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2028-03-12T05:30:00Z`	`2028-03-12 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2028-11-05T04:30:00Z`	`2028-11-05 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2029-03-11T05:30:00Z`	`2029-03-11 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2029-11-04T04:30:00Z`	`2029-11-04 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2030-03-10T05:30:00Z`	`2030-03-10 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2030-11-03T04:30:00Z`	`2030-11-03 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2031-03-09T05:30:00Z`	`2031-03-09 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2031-11-02T04:30:00Z`	`2031-11-02 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2032-03-14T05:30:00Z`	`2032-03-14 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2032-11-07T04:30:00Z`	`2032-11-07 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2033-03-13T05:30:00Z`	`2033-03-13 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2033-11-06T04:30:00Z`	`2033-11-06 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2034-03-12T05:30:00Z`	`2034-03-12 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2034-11-05T04:30:00Z`	`2034-11-05 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2035-03-11T05:30:00Z`	`2035-03-11 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2035-11-04T04:30:00Z`	`2035-11-04 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2036-03-09T05:30:00Z`	`2036-03-09 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2036-11-02T04:30:00Z`	`2036-11-02 01:00:00`	-02:30 → -03:30	`NST`	No	overlap
`2037-03-08T05:30:00Z`	`2037-03-08 03:00:00`	-03:30 → -02:30	`NDT`	Yes	gap
`2037-11-01T04:30:00Z`	`2037-11-01 01:00:00`	-02:30 → -03:30	`NST`	No	overlap

Notes from the Maintainers

Source: northamerica (Lines 1461 to 1463)

St John's has an apostrophe, but POSIX file names can't have apostrophes.
Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]

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.