Time Zone History

Palmer Station time zone history

Daylight saving time was used in 36 years since 1970, last in 2016; under the current rules the clocks no longer change. On December 4, 2016 the summer offset, UTC−3, became permanent standard time; the clocks did not move that day. The record holds 3 different UTC offsets, the most of the 7 zones in Antarctica.

UTC−3

Standard time is UTC−3 all year under the current rules.

Covers: Palmer · tz database name Antarctica/Palmer

Convert a time from Palmer Station

Summer time in 36 of 57 years since 1970

UTC−4: 1 hour behind today’s standard timeUTC−3: today’s standard timeUTC−2: 1 hour ahead of today’s standard timeNo local time in the record (station not yet in use)UTC−4: 1 hour behind today’sstandard timeUTC−3: today’s standard timeUTC−2: 1 hour ahead of today’sstandard timeNo local time in the record(station not yet in use)

How to read this chart

Before 1970

1960197019601970
JanFebMarAprMayJunJulAugSepOctNovDec1970198019902000201020202028JFMAMJJASOND1970198019902000201020202028

Standard time changes

DateChangeNew standard timeClock label
Before 1970
January 1, 1965First local time in the recordUTC−4numeric only
October 5, 1969Standard time forward 1 hourUTC−3numeric only
Since 1970
May 1, 1982Standard time back 1 hourUTC−4numeric only
December 4, 2016Summer offset kept as standard time; clocks did not moveUTC−3numeric only

Daylight saving periods

YearsClocks go forwardClocks go backShift and labels
Before 1970
1965–196615 October, 00:001 March, 00:001 hour
1967–1968first Sunday in October, 00:00first Sunday in April, 00:001 hour
1969not that yearApril 61 hour
Since 1970
1974January 23May 11 hour
1982October 10not that year1 hour
1983–1986second Sunday in October, 00:00second Sunday in March, 00:001 hour
1987October 11April 121 hour
1988October 9March 131 hour
1989October 15March 121 hour
1990September 16March 111 hour
1991October 13March 101 hour
1992October 11March 151 hour
1993–1994second Sunday in October, 00:00second Sunday in March, 00:001 hour
1995October 15March 121 hour
1996October 13March 101 hour
1997October 12March 301 hour
1998September 27March 151 hour
1999October 10April 41 hour
2000October 15March 121 hour
2001–2005second Sunday in October, 00:00second Sunday in March, 00:001 hour
2006October 15March 121 hour
2007October 14March 111 hour
2008October 12March 301 hour
2009October 11March 151 hour
2010October 10April 41 hour
2011August 21May 81 hour
2012September 2April 291 hour
2013September 8April 281 hour
2014September 7April 271 hour
2016August 14May 151 hour

Also on UTC−3

Rothera Station (Antarctica), Ushuaia (Argentina), Punta Arenas (Chile), Rio Gallegos (Argentina), Falkland Islands, Coyhaique (Chile), Uruguay, Buenos Aires (Argentina), San Luis (Argentina) and Mendoza (Argentina) (nearest first; 19 more on the list of offsets).

Clocks next door since 1970

  • Rothera Station (357 km): same time except 9,115 days in 1970–1976, 1982–2014 and 2016.
  • Ushuaia (Argentina) (1,136 km): same time except 7,285 days in 1982–2014 and 2016.
  • Punta Arenas (Chile) (1,351 km): same time except 2,636 days in 1970–1982.
  • Rio Gallegos (Argentina) (1,493 km): same time except 7,287 days in 1982–2014 and 2016.
  • Falkland Islands (1,500 km): same time except 7,744 days in 1970–2014 and 2016.
  • South Georgia and the South Sandwich Islands (1,920 km): usually 1 hour ahead; different on 6,687 days in 1974, 1982–2014 and 2016.

How it compares

Clocks have been changed 71 times since 1970, the most of the 7 zones in Antarctica.

On standard time, clocks in Palmer Station run 1 hour 16 minutes ahead of local mean solar time.