Zone NAME STDOFF RULES FORMAT [UNTIL]
America/Havana
Time zone identifier: America/Havana
Current civil offset: -05:00 (CST)
Current DST state: Observing Standard Time
First standard time adoption: Adopted on 1890-01-01
Local Mean Time (LMT): -05:29:28 based on geographic meridian
Total recorded transitions: 156 transitions across 4 distinct offsets
Associated countries: CU
Aliases (Link targets): Cuba
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Historical Offset Step Chart (1880 to Present)
Text summary: America/Havana 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 |
|---|---|---|---|---|---|
1890-01-01T05:29:28Z | 1889-12-31 23:59:52 | -05:29:28 → -05:29:36 | HMT | No | overlap |
1925-07-19T17:29:36Z | 1925-07-19 12:29:36 | -05:29:36 → -05:00 | CST | No | gap |
1928-06-10T05:00:00Z | 1928-06-10 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1928-10-10T04:00:00Z | 1928-10-09 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1940-06-02T05:00:00Z | 1940-06-02 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1940-09-01T04:00:00Z | 1940-08-31 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1941-06-01T05:00:00Z | 1941-06-01 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1941-09-07T04:00:00Z | 1941-09-06 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1942-06-07T05:00:00Z | 1942-06-07 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1942-09-06T04:00:00Z | 1942-09-05 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1945-06-03T05:00:00Z | 1945-06-03 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1945-09-02T04:00:00Z | 1945-09-01 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1946-06-02T05:00:00Z | 1946-06-02 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1946-09-01T04:00:00Z | 1946-08-31 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1965-06-01T05:00:00Z | 1965-06-01 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1965-09-30T04:00:00Z | 1965-09-29 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1966-05-29T05:00:00Z | 1966-05-29 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1966-10-02T04:00:00Z | 1966-10-01 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1967-04-08T05:00:00Z | 1967-04-08 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1967-09-10T04:00:00Z | 1967-09-09 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1968-04-14T05:00:00Z | 1968-04-14 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1968-09-08T04:00:00Z | 1968-09-07 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1969-04-27T05:00:00Z | 1969-04-27 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1969-10-26T04:00:00Z | 1969-10-25 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1970-04-26T05:00:00Z | 1970-04-26 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1970-10-25T04:00:00Z | 1970-10-24 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1971-04-25T05:00:00Z | 1971-04-25 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1971-10-31T04:00:00Z | 1971-10-30 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1972-04-30T05:00:00Z | 1972-04-30 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1972-10-08T04:00:00Z | 1972-10-07 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1973-04-29T05:00:00Z | 1973-04-29 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1973-10-08T04:00:00Z | 1973-10-07 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1974-04-28T05:00:00Z | 1974-04-28 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1974-10-08T04:00:00Z | 1974-10-07 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1975-04-27T05:00:00Z | 1975-04-27 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1975-10-26T04:00:00Z | 1975-10-25 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1976-04-25T05:00:00Z | 1976-04-25 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1976-10-31T04:00:00Z | 1976-10-30 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1977-04-24T05:00:00Z | 1977-04-24 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1977-10-30T04:00:00Z | 1977-10-29 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1978-05-07T05:00:00Z | 1978-05-07 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1978-10-08T04:00:00Z | 1978-10-07 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1979-03-18T05:00:00Z | 1979-03-18 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1979-10-14T04:00:00Z | 1979-10-13 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1980-03-16T05:00:00Z | 1980-03-16 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1980-10-12T04:00:00Z | 1980-10-11 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1981-05-10T05:00:00Z | 1981-05-10 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1981-10-11T04:00:00Z | 1981-10-10 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1982-05-09T05:00:00Z | 1982-05-09 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1982-10-10T04:00:00Z | 1982-10-09 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1983-05-08T05:00:00Z | 1983-05-08 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1983-10-09T04:00:00Z | 1983-10-08 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1984-05-06T05:00:00Z | 1984-05-06 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1984-10-14T04:00:00Z | 1984-10-13 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1985-05-05T05:00:00Z | 1985-05-05 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1985-10-13T04:00:00Z | 1985-10-12 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1986-03-16T05:00:00Z | 1986-03-16 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1986-10-12T04:00:00Z | 1986-10-11 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1987-03-15T05:00:00Z | 1987-03-15 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1987-10-11T04:00:00Z | 1987-10-10 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1988-03-20T05:00:00Z | 1988-03-20 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1988-10-09T04:00:00Z | 1988-10-08 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1989-03-19T05:00:00Z | 1989-03-19 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1989-10-08T04:00:00Z | 1989-10-07 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1990-04-01T05:00:00Z | 1990-04-01 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1990-10-14T04:00:00Z | 1990-10-13 23:00:00 | -04:00 → -05:00 | CST | No | overlap |
1991-04-07T05:00:00Z | 1991-04-07 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1991-10-13T05:00:00Z | 1991-10-13 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
1992-04-05T05:00:00Z | 1992-04-05 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1992-10-11T05:00:00Z | 1992-10-11 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
1993-04-04T05:00:00Z | 1993-04-04 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1993-10-10T05:00:00Z | 1993-10-10 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
1994-04-03T05:00:00Z | 1994-04-03 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1994-10-09T05:00:00Z | 1994-10-09 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
1995-04-02T05:00:00Z | 1995-04-02 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1995-10-08T05:00:00Z | 1995-10-08 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
1996-04-07T05:00:00Z | 1996-04-07 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1996-10-06T05:00:00Z | 1996-10-06 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
1997-04-06T05:00:00Z | 1997-04-06 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1997-10-12T05:00:00Z | 1997-10-12 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
1998-03-29T05:00:00Z | 1998-03-29 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1998-10-25T05:00:00Z | 1998-10-25 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
1999-03-28T05:00:00Z | 1999-03-28 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
1999-10-31T05:00:00Z | 1999-10-31 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2000-04-02T05:00:00Z | 2000-04-02 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2000-10-29T05:00:00Z | 2000-10-29 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2001-04-01T05:00:00Z | 2001-04-01 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2001-10-28T05:00:00Z | 2001-10-28 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2002-04-07T05:00:00Z | 2002-04-07 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2002-10-27T05:00:00Z | 2002-10-27 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2003-04-06T05:00:00Z | 2003-04-06 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2003-10-26T05:00:00Z | 2003-10-26 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2004-03-28T05:00:00Z | 2004-03-28 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2006-10-29T05:00:00Z | 2006-10-29 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2007-03-11T05:00:00Z | 2007-03-11 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2007-10-28T05:00:00Z | 2007-10-28 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2008-03-16T05:00:00Z | 2008-03-16 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2008-10-26T05:00:00Z | 2008-10-26 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2009-03-08T05:00:00Z | 2009-03-08 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2009-10-25T05:00:00Z | 2009-10-25 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2010-03-14T05:00:00Z | 2010-03-14 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2010-10-31T05:00:00Z | 2010-10-31 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2011-03-20T05:00:00Z | 2011-03-20 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2011-11-13T05:00:00Z | 2011-11-13 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2012-04-01T05:00:00Z | 2012-04-01 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2012-11-04T05:00:00Z | 2012-11-04 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2013-03-10T05:00:00Z | 2013-03-10 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2013-11-03T05:00:00Z | 2013-11-03 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2014-03-09T05:00:00Z | 2014-03-09 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2014-11-02T05:00:00Z | 2014-11-02 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2015-03-08T05:00:00Z | 2015-03-08 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2015-11-01T05:00:00Z | 2015-11-01 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2016-03-13T05:00:00Z | 2016-03-13 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2016-11-06T05:00:00Z | 2016-11-06 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2017-03-12T05:00:00Z | 2017-03-12 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2017-11-05T05:00:00Z | 2017-11-05 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2018-03-11T05:00:00Z | 2018-03-11 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2018-11-04T05:00:00Z | 2018-11-04 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2019-03-10T05:00:00Z | 2019-03-10 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2019-11-03T05:00:00Z | 2019-11-03 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2020-03-08T05:00:00Z | 2020-03-08 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2020-11-01T05:00:00Z | 2020-11-01 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2021-03-14T05:00:00Z | 2021-03-14 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2021-11-07T05:00:00Z | 2021-11-07 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2022-03-13T05:00:00Z | 2022-03-13 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2022-11-06T05:00:00Z | 2022-11-06 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2023-03-12T05:00:00Z | 2023-03-12 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2023-11-05T05:00:00Z | 2023-11-05 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2024-03-10T05:00:00Z | 2024-03-10 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2024-11-03T05:00:00Z | 2024-11-03 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2025-03-09T05:00:00Z | 2025-03-09 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2025-11-02T05:00:00Z | 2025-11-02 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2026-03-08T05:00:00Z | 2026-03-08 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2026-11-01T05:00:00Z | 2026-11-01 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2027-03-14T05:00:00Z | 2027-03-14 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2027-11-07T05:00:00Z | 2027-11-07 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2028-03-12T05:00:00Z | 2028-03-12 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2028-11-05T05:00:00Z | 2028-11-05 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2029-03-11T05:00:00Z | 2029-03-11 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2029-11-04T05:00:00Z | 2029-11-04 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2030-03-10T05:00:00Z | 2030-03-10 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2030-11-03T05:00:00Z | 2030-11-03 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2031-03-09T05:00:00Z | 2031-03-09 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2031-11-02T05:00:00Z | 2031-11-02 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2032-03-14T05:00:00Z | 2032-03-14 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2032-11-07T05:00:00Z | 2032-11-07 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2033-03-13T05:00:00Z | 2033-03-13 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2033-11-06T05:00:00Z | 2033-11-06 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2034-03-12T05:00:00Z | 2034-03-12 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2034-11-05T05:00:00Z | 2034-11-05 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2035-03-11T05:00:00Z | 2035-03-11 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2035-11-04T05:00:00Z | 2035-11-04 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2036-03-09T05:00:00Z | 2036-03-09 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2036-11-02T05:00:00Z | 2036-11-02 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
2037-03-08T05:00:00Z | 2037-03-08 01:00:00 | -05:00 → -04:00 | CDT | Yes | gap |
2037-11-01T05:00:00Z | 2037-11-01 00:00:00 | -04:00 → -05:00 | CST | No | overlap |
Notes from the Maintainers
Years on Record
18901925192819401941194219451946196519661967196819691970197119721973197419751976197719781979198019811982198319841985198619871988198919901991199219931994199519961997199819992000200120022003200420062007200820092010201120122013201420152016201720182019202020212022202320242025202620272028202920302031203220332034203520362037
Methodology Note: The 1970 Rule
tzdb guarantees accuracy for timestamps from 1970 onwards. Transitions prior to 1970 represent best-effort historical reconstructions.
northamerica(Lines 3499 to 3500)