America/Santiago

Time zone identifier: America/Santiago

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

Current DST state: Observing Daylight Saving Time

First standard time adoption: Adopted on 1890-01-01

Local Mean Time (LMT): -04:42:45 based on geographic meridian

Total recorded transitions: 159 transitions across 4 distinct offsets

Associated countries: CL

Aliases (Link targets): Chile/Continental

Historical Offset Step Chart (1880 to Present)

Text summary: America/Santiago shifted between 4 distinct offsets from 1890-01-01 through the modern era.

Complete Transition History (159 Transitions)

UTC Instant	Local Wall Time	Shift	Abbreviation	DST	Effect
`1890-01-01T04:42:45Z`	`1890-01-01 00:00:00`	-04:42:45 → -04:42:45	`SMT`	No	offset-only
`1910-01-10T04:42:45Z`	`1910-01-09 23:42:45`	-04:42:45 → -05:00	`-05`	No	overlap
`1916-07-01T05:00:00Z`	`1916-07-01 00:17:15`	-05:00 → -04:42:45	`SMT`	No	gap
`1918-09-10T04:42:45Z`	`1918-09-10 00:42:45`	-04:42:45 → -04:00	`-04`	No	gap
`1919-07-01T04:00:00Z`	`1919-06-30 23:17:15`	-04:00 → -04:42:45	`SMT`	No	overlap
`1927-09-01T04:42:45Z`	`1927-09-01 00:42:45`	-04:42:45 → -04:00	`-04`	Yes	gap
`1928-04-01T04:00:00Z`	`1928-03-31 23:00:00`	-04:00 → -05:00	`-05`	No	overlap
`1928-09-01T05:00:00Z`	`1928-09-01 01:00:00`	-05:00 → -04:00	`-04`	Yes	gap
`1929-04-01T04:00:00Z`	`1929-03-31 23:00:00`	-04:00 → -05:00	`-05`	No	overlap
`1929-09-01T05:00:00Z`	`1929-09-01 01:00:00`	-05:00 → -04:00	`-04`	Yes	gap
`1930-04-01T04:00:00Z`	`1930-03-31 23:00:00`	-04:00 → -05:00	`-05`	No	overlap
`1930-09-01T05:00:00Z`	`1930-09-01 01:00:00`	-05:00 → -04:00	`-04`	Yes	gap
`1931-04-01T04:00:00Z`	`1931-03-31 23:00:00`	-04:00 → -05:00	`-05`	No	overlap
`1931-09-01T05:00:00Z`	`1931-09-01 01:00:00`	-05:00 → -04:00	`-04`	Yes	gap
`1932-04-01T04:00:00Z`	`1932-03-31 23:00:00`	-04:00 → -05:00	`-05`	No	overlap
`1932-09-01T05:00:00Z`	`1932-09-01 01:00:00`	-05:00 → -04:00	`-04`	No	gap
`1942-06-01T04:00:00Z`	`1942-05-31 23:00:00`	-04:00 → -05:00	`-05`	No	overlap
`1942-08-01T05:00:00Z`	`1942-08-01 01:00:00`	-05:00 → -04:00	`-04`	No	gap
`1946-07-15T04:00:00Z`	`1946-07-15 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1946-08-29T03:00:00Z`	`1946-08-28 23:00:00`	-03:00 → -04:00	`-04`	Yes	overlap
`1947-04-01T04:00:00Z`	`1947-03-31 23:00:00`	-04:00 → -05:00	`-05`	No	overlap
`1947-05-22T04:00:00Z`	`1947-05-22 00:00:00`	-05:00 → -04:00	`-04`	No	gap
`1968-11-03T04:00:00Z`	`1968-11-03 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1969-03-30T03:00:00Z`	`1969-03-29 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1969-11-23T04:00:00Z`	`1969-11-23 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1970-03-29T03:00:00Z`	`1970-03-28 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1970-10-11T04:00:00Z`	`1970-10-11 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1971-03-14T03:00:00Z`	`1971-03-13 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1971-10-10T04:00:00Z`	`1971-10-10 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1972-03-12T03:00:00Z`	`1972-03-11 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1972-10-15T04:00:00Z`	`1972-10-15 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1973-03-11T03:00:00Z`	`1973-03-10 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1973-09-30T04:00:00Z`	`1973-09-30 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1974-03-10T03:00:00Z`	`1974-03-09 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1974-10-13T04:00:00Z`	`1974-10-13 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1975-03-09T03:00:00Z`	`1975-03-08 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1975-10-12T04:00:00Z`	`1975-10-12 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1976-03-14T03:00:00Z`	`1976-03-13 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1976-10-10T04:00:00Z`	`1976-10-10 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1977-03-13T03:00:00Z`	`1977-03-12 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1977-10-09T04:00:00Z`	`1977-10-09 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1978-03-12T03:00:00Z`	`1978-03-11 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1978-10-15T04:00:00Z`	`1978-10-15 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1979-03-11T03:00:00Z`	`1979-03-10 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1979-10-14T04:00:00Z`	`1979-10-14 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1980-03-09T03:00:00Z`	`1980-03-08 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1980-10-12T04:00:00Z`	`1980-10-12 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1981-03-15T03:00:00Z`	`1981-03-14 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1981-10-11T04:00:00Z`	`1981-10-11 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1982-03-14T03:00:00Z`	`1982-03-13 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1982-10-10T04:00:00Z`	`1982-10-10 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1983-03-13T03:00:00Z`	`1983-03-12 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1983-10-09T04:00:00Z`	`1983-10-09 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1984-03-11T03:00:00Z`	`1984-03-10 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1984-10-14T04:00:00Z`	`1984-10-14 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1985-03-10T03:00:00Z`	`1985-03-09 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1985-10-13T04:00:00Z`	`1985-10-13 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1986-03-09T03:00:00Z`	`1986-03-08 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1986-10-12T04:00:00Z`	`1986-10-12 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1987-04-12T03:00:00Z`	`1987-04-11 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1987-10-11T04:00:00Z`	`1987-10-11 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1988-03-13T03:00:00Z`	`1988-03-12 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1988-10-09T04:00:00Z`	`1988-10-09 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1989-03-12T03:00:00Z`	`1989-03-11 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1989-10-15T04:00:00Z`	`1989-10-15 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1990-03-11T03:00:00Z`	`1990-03-10 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1990-09-16T04:00:00Z`	`1990-09-16 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1991-03-10T03:00:00Z`	`1991-03-09 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1991-10-13T04:00:00Z`	`1991-10-13 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1992-03-15T03:00:00Z`	`1992-03-14 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1992-10-11T04:00:00Z`	`1992-10-11 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1993-03-14T03:00:00Z`	`1993-03-13 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1993-10-10T04:00:00Z`	`1993-10-10 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1994-03-13T03:00:00Z`	`1994-03-12 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1994-10-09T04:00:00Z`	`1994-10-09 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1995-03-12T03:00:00Z`	`1995-03-11 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1995-10-15T04:00:00Z`	`1995-10-15 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1996-03-10T03:00:00Z`	`1996-03-09 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1996-10-13T04:00:00Z`	`1996-10-13 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1997-03-30T03:00:00Z`	`1997-03-29 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1997-10-12T04:00:00Z`	`1997-10-12 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1998-03-15T03:00:00Z`	`1998-03-14 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1998-09-27T04:00:00Z`	`1998-09-27 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1999-04-04T03:00:00Z`	`1999-04-03 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1999-10-10T04:00:00Z`	`1999-10-10 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2000-03-12T03:00:00Z`	`2000-03-11 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2000-10-15T04:00:00Z`	`2000-10-15 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2001-03-11T03:00:00Z`	`2001-03-10 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2001-10-14T04:00:00Z`	`2001-10-14 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2002-03-10T03:00:00Z`	`2002-03-09 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2002-10-13T04:00:00Z`	`2002-10-13 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2003-03-09T03:00:00Z`	`2003-03-08 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2003-10-12T04:00:00Z`	`2003-10-12 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2004-03-14T03:00:00Z`	`2004-03-13 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2004-10-10T04:00:00Z`	`2004-10-10 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2005-03-13T03:00:00Z`	`2005-03-12 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2005-10-09T04:00:00Z`	`2005-10-09 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2006-03-12T03:00:00Z`	`2006-03-11 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2006-10-15T04:00:00Z`	`2006-10-15 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2007-03-11T03:00:00Z`	`2007-03-10 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2007-10-14T04:00:00Z`	`2007-10-14 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2008-03-30T03:00:00Z`	`2008-03-29 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2008-10-12T04:00:00Z`	`2008-10-12 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2009-03-15T03:00:00Z`	`2009-03-14 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2009-10-11T04:00:00Z`	`2009-10-11 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2010-04-04T03:00:00Z`	`2010-04-03 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2010-10-10T04:00:00Z`	`2010-10-10 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2011-05-08T03:00:00Z`	`2011-05-07 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2011-08-21T04:00:00Z`	`2011-08-21 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2012-04-29T03:00:00Z`	`2012-04-28 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2012-09-02T04:00:00Z`	`2012-09-02 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2013-04-28T03:00:00Z`	`2013-04-27 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2013-09-08T04:00:00Z`	`2013-09-08 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2014-04-27T03:00:00Z`	`2014-04-26 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2014-09-07T04:00:00Z`	`2014-09-07 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2016-05-15T03:00:00Z`	`2016-05-14 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2016-08-14T04:00:00Z`	`2016-08-14 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2017-05-14T03:00:00Z`	`2017-05-13 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2017-08-13T04:00:00Z`	`2017-08-13 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2018-05-13T03:00:00Z`	`2018-05-12 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2018-08-12T04:00:00Z`	`2018-08-12 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2019-04-07T03:00:00Z`	`2019-04-06 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2019-09-08T04:00:00Z`	`2019-09-08 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2020-04-05T03:00:00Z`	`2020-04-04 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2020-09-06T04:00:00Z`	`2020-09-06 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2021-04-04T03:00:00Z`	`2021-04-03 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2021-09-05T04:00:00Z`	`2021-09-05 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2022-04-03T03:00:00Z`	`2022-04-02 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2022-09-11T04:00:00Z`	`2022-09-11 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2023-04-02T03:00:00Z`	`2023-04-01 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2023-09-03T04:00:00Z`	`2023-09-03 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2024-04-07T03:00:00Z`	`2024-04-06 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2024-09-08T04:00:00Z`	`2024-09-08 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2025-04-06T03:00:00Z`	`2025-04-05 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2025-09-07T04:00:00Z`	`2025-09-07 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2026-04-05T03:00:00Z`	`2026-04-04 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2026-09-06T04:00:00Z`	`2026-09-06 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2027-04-04T03:00:00Z`	`2027-04-03 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2027-09-05T04:00:00Z`	`2027-09-05 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2028-04-02T03:00:00Z`	`2028-04-01 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2028-09-03T04:00:00Z`	`2028-09-03 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2029-04-08T03:00:00Z`	`2029-04-07 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2029-09-02T04:00:00Z`	`2029-09-02 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2030-04-07T03:00:00Z`	`2030-04-06 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2030-09-08T04:00:00Z`	`2030-09-08 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2031-04-06T03:00:00Z`	`2031-04-05 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2031-09-07T04:00:00Z`	`2031-09-07 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2032-04-04T03:00:00Z`	`2032-04-03 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2032-09-05T04:00:00Z`	`2032-09-05 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2033-04-03T03:00:00Z`	`2033-04-02 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2033-09-04T04:00:00Z`	`2033-09-04 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2034-04-02T03:00:00Z`	`2034-04-01 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2034-09-03T04:00:00Z`	`2034-09-03 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2035-04-08T03:00:00Z`	`2035-04-07 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2035-09-02T04:00:00Z`	`2035-09-02 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2036-04-06T03:00:00Z`	`2036-04-05 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2036-09-07T04:00:00Z`	`2036-09-07 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`2037-04-05T03:00:00Z`	`2037-04-04 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`2037-09-06T04:00:00Z`	`2037-09-06 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap

Notes from the Maintainers

Source: southamerica (Lines 1394 to 1396)

IATA SSIM anomalies: (1992-02) says 1992-03-14;
(1996-09) says 1998-03-08.  Ignore these.
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.