Antarctica/Palmer

Time zone identifier: Antarctica/Palmer

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

Current DST state: Observing Standard Time

First standard time adoption: Adopted on 1965-01-01

Total recorded transitions: 82 transitions across 4 distinct offsets

Associated countries: AQ

Historical Offset Step Chart (1880 to Present)

Text summary: Antarctica/Palmer shifted between 4 distinct offsets from 1965-01-01 through the modern era.

Complete Transition History (82 Transitions)

UTC Instant	Local Wall Time	Shift	Abbreviation	DST	Effect
`1965-01-01T00:00:00Z`	`1964-12-31 21:00:00`	+00:00 → -03:00	`-03`	Yes	overlap
`1965-03-01T03:00:00Z`	`1965-02-28 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1965-10-15T04:00:00Z`	`1965-10-15 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1966-03-01T03:00:00Z`	`1966-02-28 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1966-10-15T04:00:00Z`	`1966-10-15 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1967-04-02T03:00:00Z`	`1967-04-01 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1967-10-01T04:00:00Z`	`1967-10-01 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1968-04-07T03:00:00Z`	`1968-04-06 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1968-10-06T04:00:00Z`	`1968-10-06 01:00:00`	-04:00 → -03:00	`-03`	Yes	gap
`1969-04-06T03:00:00Z`	`1969-04-05 23:00:00`	-03:00 → -04:00	`-04`	No	overlap
`1969-10-05T04:00:00Z`	`1969-10-05 01:00:00`	-04:00 → -03:00	`-03`	No	gap
`1974-01-23T03:00:00Z`	`1974-01-23 01:00:00`	-03:00 → -02:00	`-02`	Yes	gap
`1974-05-01T02:00:00Z`	`1974-04-30 23:00:00`	-02:00 → -03:00	`-03`	No	overlap
`1982-05-01T03:00:00Z`	`1982-04-30 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
`2016-12-04T03:00:00Z`	`2016-12-04 00:00:00`	-03:00 → -03:00	`-03`	No	offset-only

Notes from the Maintainers

Source: southamerica (Lines 1443 to 1460)

Salas y Gómez Island is uninhabited.
Other Chilean locations, including Juan Fernández Is, Desventuradas Is,
and Antarctic bases, are like America/Santiago.

Antarctic base using South American rules
(See the file 'antarctica' for more.)

Palmer, Anvers Island, since 1965 (moved 2 miles in 1968)

From Ethan Dicks (1996-10-06):
It keeps the same time as Punta Arenas, Chile, because, just like us
and the South Pole, that's the other end of their supply line....
I verified with someone who was there that since 1980,
Palmer has followed Chile.  Prior to that, before the Falklands War,
Palmer used to be supplied from Argentina.

Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]

Attributed Statements:

Ethan Dicks (1996-10-06):

It keeps the same time as Punta Arenas, Chile, because, just like us and the South Pole, that's the other end of their supply line.... I verified with someone who was there that since 1980, Palmer has followed Chile. Prior to that, before the Falklands War, Palmer used to be supplied from Argentina. 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.