Zone NAME STDOFF RULES FORMAT [UNTIL] STDOFF -4:19:18.3
Atlantic/Bermuda
Time zone identifier: Atlantic/Bermuda
Current civil offset: -04:00 (AST)
Current DST state: Observing Standard Time
First standard time adoption: Adopted on 1890-01-01
Local Mean Time (LMT): -04:19:18 based on geographic meridian
Total recorded transitions: 156 transitions across 4 distinct offsets
Associated countries: BM
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Historical Offset Step Chart (1880 to Present)
Text summary: Atlantic/Bermuda shifted between 4 distinct offsets from 1890-01-01 through the modern era.
Complete Transition History (156 Transitions)
| UTC Instant | Local Wall Time | Shift | Abbreviation | DST | Effect |
|---|---|---|---|---|---|
1890-01-01T04:19:18Z | 1890-01-01 00:00:00 | -04:19:18 → -04:19:18 | BMT | No | offset-only |
1917-04-06T04:19:18Z | 1917-04-06 01:00:00 | -04:19:18 → -03:19:18 | BST | Yes | gap |
1917-10-01T03:19:18Z | 1917-09-30 23:00:00 | -03:19:18 → -04:19:18 | BMT | No | overlap |
1918-04-14T04:19:18Z | 1918-04-14 01:00:00 | -04:19:18 → -03:19:18 | BST | Yes | gap |
1918-09-16T03:19:18Z | 1918-09-15 23:00:00 | -03:19:18 → -04:19:18 | BMT | No | overlap |
1930-01-01T06:19:18Z | 1930-01-01 02:19:18 | -04:19:18 → -04:00 | AST | No | gap |
1942-01-11T06:00:00Z | 1942-01-11 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1942-10-18T05:00:00Z | 1942-10-18 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1943-03-21T06:00:00Z | 1943-03-21 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1943-10-31T05:00:00Z | 1943-10-31 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1944-03-12T06:00:00Z | 1944-03-12 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1944-11-05T05:00:00Z | 1944-11-05 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1945-03-11T06:00:00Z | 1945-03-11 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1945-11-04T05:00:00Z | 1945-11-04 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1947-05-18T06:00:00Z | 1947-05-18 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1947-09-14T05:00:00Z | 1947-09-14 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1948-05-23T06:00:00Z | 1948-05-23 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1948-09-05T05:00:00Z | 1948-09-05 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1949-05-22T06:00:00Z | 1949-05-22 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1949-09-04T05:00:00Z | 1949-09-04 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1950-05-28T06:00:00Z | 1950-05-28 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1950-09-03T05:00:00Z | 1950-09-03 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1951-05-27T06:00:00Z | 1951-05-27 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1951-09-02T05:00:00Z | 1951-09-02 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1952-05-25T06:00:00Z | 1952-05-25 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1952-09-07T05:00:00Z | 1952-09-07 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1956-05-27T06:00:00Z | 1956-05-27 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1956-10-28T05:00:00Z | 1956-10-28 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1974-04-28T06:00:00Z | 1974-04-28 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1974-10-27T05:00:00Z | 1974-10-27 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1975-04-27T06:00:00Z | 1975-04-27 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1975-10-26T05:00:00Z | 1975-10-26 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1976-04-25T06:00:00Z | 1976-04-25 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1976-10-31T05:00:00Z | 1976-10-31 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1977-04-24T06:00:00Z | 1977-04-24 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1977-10-30T05:00:00Z | 1977-10-30 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1978-04-30T06:00:00Z | 1978-04-30 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1978-10-29T05:00:00Z | 1978-10-29 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1979-04-29T06:00:00Z | 1979-04-29 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1979-10-28T05:00:00Z | 1979-10-28 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1980-04-27T06:00:00Z | 1980-04-27 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1980-10-26T05:00:00Z | 1980-10-26 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1981-04-26T06:00:00Z | 1981-04-26 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1981-10-25T05:00:00Z | 1981-10-25 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1982-04-25T06:00:00Z | 1982-04-25 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1982-10-31T05:00:00Z | 1982-10-31 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1983-04-24T06:00:00Z | 1983-04-24 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1983-10-30T05:00:00Z | 1983-10-30 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1984-04-29T06:00:00Z | 1984-04-29 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1984-10-28T05:00:00Z | 1984-10-28 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1985-04-28T06:00:00Z | 1985-04-28 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1985-10-27T05:00:00Z | 1985-10-27 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1986-04-27T06:00:00Z | 1986-04-27 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1986-10-26T05:00:00Z | 1986-10-26 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1987-04-05T06:00:00Z | 1987-04-05 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1987-10-25T05:00:00Z | 1987-10-25 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1988-04-03T06:00:00Z | 1988-04-03 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1988-10-30T05:00:00Z | 1988-10-30 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1989-04-02T06:00:00Z | 1989-04-02 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1989-10-29T05:00:00Z | 1989-10-29 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1990-04-01T06:00:00Z | 1990-04-01 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1990-10-28T05:00:00Z | 1990-10-28 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1991-04-07T06:00:00Z | 1991-04-07 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1991-10-27T05:00:00Z | 1991-10-27 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1992-04-05T06:00:00Z | 1992-04-05 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1992-10-25T05:00:00Z | 1992-10-25 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1993-04-04T06:00:00Z | 1993-04-04 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1993-10-31T05:00:00Z | 1993-10-31 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1994-04-03T06:00:00Z | 1994-04-03 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1994-10-30T05:00:00Z | 1994-10-30 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1995-04-02T06:00:00Z | 1995-04-02 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1995-10-29T05:00:00Z | 1995-10-29 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1996-04-07T06:00:00Z | 1996-04-07 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1996-10-27T05:00:00Z | 1996-10-27 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1997-04-06T06:00:00Z | 1997-04-06 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1997-10-26T05:00:00Z | 1997-10-26 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1998-04-05T06:00:00Z | 1998-04-05 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1998-10-25T05:00:00Z | 1998-10-25 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
1999-04-04T06:00:00Z | 1999-04-04 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
1999-10-31T05:00:00Z | 1999-10-31 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2000-04-02T06:00:00Z | 2000-04-02 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2000-10-29T05:00:00Z | 2000-10-29 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2001-04-01T06:00:00Z | 2001-04-01 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2001-10-28T05:00:00Z | 2001-10-28 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2002-04-07T06:00:00Z | 2002-04-07 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2002-10-27T05:00:00Z | 2002-10-27 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2003-04-06T06:00:00Z | 2003-04-06 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2003-10-26T05:00:00Z | 2003-10-26 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2004-04-04T06:00:00Z | 2004-04-04 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2004-10-31T05:00:00Z | 2004-10-31 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2005-04-03T06:00:00Z | 2005-04-03 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2005-10-30T05:00:00Z | 2005-10-30 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2006-04-02T06:00:00Z | 2006-04-02 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2006-10-29T05:00:00Z | 2006-10-29 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2007-03-11T06:00:00Z | 2007-03-11 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2007-11-04T05:00:00Z | 2007-11-04 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2008-03-09T06:00:00Z | 2008-03-09 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2008-11-02T05:00:00Z | 2008-11-02 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2009-03-08T06:00:00Z | 2009-03-08 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2009-11-01T05:00:00Z | 2009-11-01 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2010-03-14T06:00:00Z | 2010-03-14 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2010-11-07T05:00:00Z | 2010-11-07 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2011-03-13T06:00:00Z | 2011-03-13 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2011-11-06T05:00:00Z | 2011-11-06 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2012-03-11T06:00:00Z | 2012-03-11 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2012-11-04T05:00:00Z | 2012-11-04 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2013-03-10T06:00:00Z | 2013-03-10 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2013-11-03T05:00:00Z | 2013-11-03 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2014-03-09T06:00:00Z | 2014-03-09 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2014-11-02T05:00:00Z | 2014-11-02 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2015-03-08T06:00:00Z | 2015-03-08 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2015-11-01T05:00:00Z | 2015-11-01 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2016-03-13T06:00:00Z | 2016-03-13 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2016-11-06T05:00:00Z | 2016-11-06 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2017-03-12T06:00:00Z | 2017-03-12 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2017-11-05T05:00:00Z | 2017-11-05 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2018-03-11T06:00:00Z | 2018-03-11 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2018-11-04T05:00:00Z | 2018-11-04 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2019-03-10T06:00:00Z | 2019-03-10 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2019-11-03T05:00:00Z | 2019-11-03 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2020-03-08T06:00:00Z | 2020-03-08 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2020-11-01T05:00:00Z | 2020-11-01 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2021-03-14T06:00:00Z | 2021-03-14 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2021-11-07T05:00:00Z | 2021-11-07 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2022-03-13T06:00:00Z | 2022-03-13 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2022-11-06T05:00:00Z | 2022-11-06 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2023-03-12T06:00:00Z | 2023-03-12 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2023-11-05T05:00:00Z | 2023-11-05 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2024-03-10T06:00:00Z | 2024-03-10 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2024-11-03T05:00:00Z | 2024-11-03 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2025-03-09T06:00:00Z | 2025-03-09 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2025-11-02T05:00:00Z | 2025-11-02 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2026-03-08T06:00:00Z | 2026-03-08 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2026-11-01T05:00:00Z | 2026-11-01 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2027-03-14T06:00:00Z | 2027-03-14 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2027-11-07T05:00:00Z | 2027-11-07 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2028-03-12T06:00:00Z | 2028-03-12 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2028-11-05T05:00:00Z | 2028-11-05 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2029-03-11T06:00:00Z | 2029-03-11 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2029-11-04T05:00:00Z | 2029-11-04 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2030-03-10T06:00:00Z | 2030-03-10 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2030-11-03T05:00:00Z | 2030-11-03 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2031-03-09T06:00:00Z | 2031-03-09 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2031-11-02T05:00:00Z | 2031-11-02 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2032-03-14T06:00:00Z | 2032-03-14 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2032-11-07T05:00:00Z | 2032-11-07 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2033-03-13T06:00:00Z | 2033-03-13 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2033-11-06T05:00:00Z | 2033-11-06 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2034-03-12T06:00:00Z | 2034-03-12 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2034-11-05T05:00:00Z | 2034-11-05 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2035-03-11T06:00:00Z | 2035-03-11 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2035-11-04T05:00:00Z | 2035-11-04 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2036-03-09T06:00:00Z | 2036-03-09 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2036-11-02T05:00:00Z | 2036-11-02 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
2037-03-08T06:00:00Z | 2037-03-08 03:00:00 | -04:00 → -03:00 | ADT | Yes | gap |
2037-11-01T05:00:00Z | 2037-11-01 01:00:00 | -03:00 → -04:00 | AST | No | overlap |
Notes from the Maintainers
Years on Record
1890191719181930194219431944194519471948194919501951195219561974197519761977197819791980198119821983198419851986198719881989199019911992199319941995199619971998199920002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025202620272028202920302031203220332034203520362037
Methodology Note: The 1970 Rule
tzdb guarantees accuracy for timestamps from 1970 onwards. Transitions prior to 1970 represent best-effort historical reconstructions.
northamerica(Lines 3271 to 3273)