Cuba

Time zone identifier: Cuba

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

Historical Offset Step Chart (1880 to Present)

Text summary: Cuba 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

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.