Time in Antarctica

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Map of approximate time zones on the continent of Antarctica. Stations could use time zones not matching the map.
UTC-03:00 UTC hue4map ATA.png
Map of approximate time zones on the continent of Antarctica. Stations could use time zones not matching the map.

Antarctica sits on every line of longitude because the South Pole is on the continent. Theoretically, Antarctica would be located in all time zones; however, areas south of the Antarctic Circle experience extreme day-night cycles near the times of the June and December solstices, making it difficult to determine which time zone would be appropriate. For practical purposes time zones are usually based on territorial claims; however, many stations use the time of the country that owns them or the time zone of their supply base (e.g., McMurdo Station and Amundsen–Scott South Pole Station use New Zealand time due to their main supply base being Christchurch, New Zealand). [1] In most areas south of 80 degrees latitude, Coordinated Universal Time is assumed despite the limited presence of clocks.


TZ database

The file zone.tab of the tz database contains the following zones, columns marked with * contain data from the file zone.tab. Only permanently inhabited stations are tracked by the tz database staff. Some summer only stations with different time might exist.

 Country code*Coordinates*Zone name*Comment* UTC offset Area covered
Standard time DST
AQ −6448−06406 Antarctica/Palmer Palmer −03:00 No Palmer Land
AQ −6734−06808 Antarctica/Rothera Rothera −03:00 No Graham Land
AQ −720041+0023206 Antarctica/Troll Troll +00:00 [2] +02:00 Queen Maud Land
AQ −690022+0393524 Antarctica/Syowa Syowa +03:00 No Queen Maud Land, Enderby Land
AQ −6736+06253 Antarctica/Mawson Mawson +05:00 No Mac. Robertson Land
AQ −7824+10654 Antarctica/Vostok Vostok +06:00 No Inland Antarctica, Queen Maud Land
AQ −6835+07758 Antarctica/Davis Davis +07:00 No Wilkes Land
AQ −6617+11031 Antarctica/Casey Casey +08:00 +08:00 [3] Wilkes Land
AQ −6640+14001 Antarctica/DumontDUrville Dumont-d'Urville +10:00 No Adélie Land, Victoria Land
AU −5430+15857 Antarctica/Macquarie Macquarie Island +10:00 +11:00 Macquarie Island
AQ −7750+16636 Antarctica/McMurdo New Zealand time - McMurdo, South Pole +12:00 +13:00 Ross Dependency
AQ Antarctica/South_Pole +12:00 +13:00 South Pole

The coordinates are latitude and longitude, and for each there are 2 or 3 digits for degrees, 2 digits for minutes and for some 2 digits for seconds.

Antarctica location map.svg
Red pog.svg
Palmer (-3)
Red pog.svg
Rothera (-3)
Red pog.svg
Vostok (+5)
Red pog.svg
Syowa (+3)
Red pog.svg
Mawson (+5)
Red pog.svg
Davis (+7)
Red pog.svg
Casey (+8)
Red pog.svg
Dumont-d'Urville (+10)
Red pog.svg
McMurdo (+12)
Red pog.svg
South Pole (+12)
Red pog.svg
Troll (0)
Locations of the reference bases (Not shown: Macquarie (+10) on Macquarie Island )

Daylight saving time

For the most part, daylight saving time (DST) is not observed in Antarctica. The majority (95 percent) of the continent is located south of the Antarctic Circle, and the midnight sun phenomenon renders the observation of DST unnecessary. Its usage would also further complicate communication with the claimant countries in the Northern Hemisphere.

However, a few regions such as the Ross Dependency and, formerly, Palmer Land, observe the time and use of DST of the countries they are supplied from, New Zealand and Chile, respectively. [1] The areas have DST during the southern summer, when there is the northern winter, including January.

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<span class="mw-page-title-main">History of Antarctica</span>

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<span class="mw-page-title-main">Ross Dependency</span> New Zealands territorial claim in Antarctica

The Ross Dependency is a region of Antarctica defined by a sector originating at the South Pole, passing along longitudes 160° east to 150° west, and terminating at latitude 60° south. It is claimed by New Zealand, a claim accepted only by the other six countries with territorial claims in Antarctica. Under the 1961 Antarctic Treaty, of which all territorial claimants are signatories, including New Zealand, all claims are held in abeyance. Article IV states: "No acts or activities taking place while the present Treaty is in force shall constitute a basis for asserting, supporting or denying a claim to territorial sovereignty in Antarctica or create any rights of sovereignty in Antarctica".

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<span class="mw-page-title-main">Midnight sun</span> Natural phenomenon when daylight lasts for a whole day

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<span class="mw-page-title-main">Polar regions of Earth</span> Regions around the Earths geographical poles

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<span class="mw-page-title-main">United States Antarctic Program</span> American government initiative

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<span class="mw-page-title-main">Research stations in Antarctica</span> Most world of Researching

Multiple governments have set up permanent research stations in Antarctica and these bases are widely distributed. Unlike the drifting ice stations set up in the Arctic, the research stations of the Antarctic are constructed either on rocks or on ice that are fixed in place.

<span class="mw-page-title-main">Troll (research station)</span> Antarctic base

Troll is a Norwegian research station located at Jutulsessen, 235 kilometres (146 mi) from the coast in the eastern part of Princess Martha Coast in Queen Maud Land, Antarctica. It is Norway's only all-year research station in Antarctica, and is supplemented by the summer-only station Tor. Troll is operated by the Norwegian Polar Institute and also features facilities for the Norwegian Meteorological Institute and the Norwegian Institute for Air Research.

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<span class="mw-page-title-main">Territorial claims in Antarctica</span> Land claims of the continent

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Telecommunications in Antarctica is provided by the organizations that have established research stations on the continent. Antarctica is not formally designated by the International Telecommunication Union (ITU) in any of the world zones.

<span class="mw-page-title-main">South Pole</span> Southernmost point on Earth

The South Pole, also known as the Geographic South Pole, Terrestrial South Pole or 90th Parallel South, is the southernmost point on Earth and lies antipodally on the opposite side of Earth from the North Pole, at a distance of 12,430 miles in all directions. It is one of the two points where Earth's axis of rotation intersects its surface.

<span class="mw-page-title-main">Queen Maud Land</span> Norways territorial claim in Antarctica

Queen Maud Land is a roughly 2.7-million-square-kilometre (1.0-million-square-mile) region of Antarctica claimed by Norway as a dependent territory. It borders the claimed British Antarctic Territory 20° west and the Australian Antarctic Territory 45° east. In addition, a small unclaimed area from 1939 was annexed in June 2015. Positioned in East Antarctica, it makes out about one-fifth of the continent, and is named after the Norwegian queen Maud of Wales (1869–1938).

Switzerland uses Central European Time (CET) during the winter as standard time, which is one hour ahead of Coordinated Universal Time (UTC+01:00), and Central European Summer Time (CEST) during the summer as daylight saving time, which is two hours ahead of Coordinated Universal Time (UTC+02:00).


  1. 1 2 "Local Time → Antarctica @ Time Genie". Timegenie.com. Retrieved 2013-07-24.
  2. Forskingsstasjonen Troll (Norwegian Polar Institute) (The Norwegian text under the webcamera says "The time zone where Troll is located, UTC+0, is 1 hours behind Norwegian time". Contacts with the Norwegian Polar Institute has revealed that they use UTC+2 (Norwegian DST) during the dark winter, for communication simplicity, since no airplanes fly anyway then)
  3. "Time Zone & Clock Changes in Casey, Antarctica".