Time in Antarctica

{{Short description|Time zones of Antarctica}} {{more citations needed|date=August 2016}} [[File:UTC hue4map ATA.png|thumb|Map of approximate time zones on the continent of Antarctica. Stations could use time zones not matching the map. {| | style="background:#f00; width:20px;"| || UTC+00:00 |- | style="background:#0ff;"| || UTC+03:00  |- | style="background:#FF8000;" | || UTC+06:00 |- | style="background:#ff0;"| || UTC+07:00 |- | style="background:#04B404;" | || UTC+08:00 |- | style="background:#013ADF;" | || UTC+10:00 |- | style="background:#F78181;" | || UTC+12:00 |- | style="background:#F8E0E0;" | || UTC+13:00 |- | style="background:#DBA901;" | || UTC−06:00 |- | style="background:#01A9DB;" | || UTC−03:00 |} ]]

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 most appropriate. For practical purposes time zones are usually based on territorial claims; however, the time zone of their supply base is often utilised (e.g., McMurdo Station and Amundsen–Scott South Pole Station use New Zealand time due to their main supply base being Christchurch, New Zealand).<ref name=DST>{{cite web|url=http://www.timegenie.com/country.time/aq |title=Local Time → Antarctica @ Time Genie |publisher=Timegenie.com |access-date=2013-07-24}}</ref> In most areas south of 80 degrees latitude, Coordinated Universal Time (UTC) 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. {| class="wikitable" |- ! rowspan="2" style="width:20px;" |   ! rowspan="2" | Country code* ! rowspan="2" | Coordinates* ! rowspan="2" | Zone name* ! rowspan="2" | Comment* ! colspan="2" | UTC offset ! rowspan="2" | Area covered |- !Standard time !DST |- | style="background:#01A9DB;" | | {{Time zone/zone.tab cols wiki6|Antarctica/Palmer|same dst=yes/no}} | Palmer Land |- | style="background:#01A9DB;" | | {{Time zone/zone.tab cols wiki6|Antarctica/Rothera|same dst=yes/no}} | Graham Land |- | style="background:#f00;" | | {{Time zone/zone.tab cols wiki6|Antarctica/Troll|same dst=yes/no}}<ref>[http://www.npolar.no/no/om-oss/norsk-polarinstitutt-i-sor/troll.html 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)</ref> | Queen Maud Land |- | style="background:#0ff;"| | {{Time zone/zone.tab cols wiki6|Antarctica/Syowa|same dst=yes/no}} | Queen Maud Land, Enderby Land |- | style="background:#FF8000;" | | {{Time zone/zone.tab cols wiki6|Antarctica/Mawson|same dst=yes/no}} | Mac. Robertson Land |- | style="background:#ff0;"| | {{Time zone/zone.tab cols wiki6|Antarctica/Vostok|same dst=yes/no}} | Inland Antarctica, Queen Maud Land |- | style="background:#ff0;"| | {{Time zone/zone.tab cols wiki6|Antarctica/Davis|same dst=yes/no}} | Wilkes Land |- | style="background:#04B404;" | | {{Time zone/zone.tab cols wiki6|Antarctica/Casey|same dst=yes/no}}<ref>{{Cite web|url=https://www.timeanddate.com/time/zone/antarctica/casey|title=Time Zone & Clock Changes in Casey, Antarctica}}</ref> | Wilkes Land |- | style="background:#013ADF;" | | {{Time zone/zone.tab cols wiki6|Antarctica/DumontDUrville|same dst=yes/no}} | Adélie Land, Victoria Land |- | style="background:#F78181;" | | {{Time zone/zone.tab cols wiki6|Antarctica/Macquarie|same dst=yes/no}} | Macquarie Island |- | style="background:#F78181;" | | {{Time zone/zone.tab cols wiki6|Antarctica/McMurdo|same dst=yes/no}} | Ross Dependency |- | style="background:#F78181;" | | {{Time zone/zone.tab cols wiki6|Antarctica/South_Pole|same dst=yes/no}} | 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.

{{Location map+ |Antarctica |width=500 |float=left |caption=Locations of the reference bases (Not shown: '''Macquarie (+10)''' on Macquarie Island) |places= {{Location map~ |Antarctica |lat=-64.8|long=-64.1|position=right|label='''Palmer (-3)'''|label_size=100|marksize=7}} {{Location map~ |Antarctica |lat=-67.6|long=-68.1|position=right|label='''Rothera (-3)'''|label_size=100|marksize=7}} {{Location map~ |Antarctica |lat=-78.4|long=106.9|position=right|label='''Vostok (+5)'''|label_size=100|marksize=7}} {{Location map~ |Antarctica |lat=-69.0|long=39.6|position=right|label='''Syowa (+3)'''|label_size=100|marksize=7}} {{Location map~ |Antarctica |lat=-67.6|long=62.9|position=right|label='''Mawson (+5)'''|label_size=100|marksize=7}} {{Location map~ |Antarctica |lat=-68.6|long=77.9|position=right|label='''Davis (+7)'''|label_size=100|marksize=7}} {{Location map~ |Antarctica |lat=-66.3|long=110.5|position=right|label='''Casey (+8)'''|label_size=100|marksize=7}} {{Location map~ |Antarctica |lat=-66.7|long=140.0|position=right|label='''Dumont-d'Urville (+10)'''|label_size=100|marksize=7}} {{Location map~ |Antarctica |lat=-77.8|long=166.6|position=right|label='''McMurdo (+12)'''|label_size=100|marksize=7}} {{Location map~ |Antarctica |lat=-90|long=0|position=right|label='''South Pole (+12)'''|label_size=100|marksize=7}} {{Location map~ |Antarctica |lat=-72.0|long=2.5|position=right|label='''Troll (0)'''|label_size=100|marksize=7}} }} {{clear}}

==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.<ref name="DST"/> The areas have DST during the southern summer, when there is the northern winter, including January.

==References== {{reflist}}

==External links== * [http://www.statoids.com/uaq.html Claims] * [http://www.vb-tech.co.za/Antartica/ Day-Night Cycle]

Category:Time by continent Category:Geography of Antarctica Category:Government of Antarctica Category:Culture of Antarctica Antarctica