1# tzdb data for Antarctica and environs 2 3# This file is in the public domain, so clarified as of 4# 2009-05-17 by Arthur David Olson. 5 6# From Paul Eggert (1999-11-15): 7# To keep things manageable, we list only locations occupied year-round; see 8# COMNAP - Stations and Bases 9# http://www.comnap.aq/comnap/comnap.nsf/P/Stations/ 10# and 11# Summary of the Peri-Antarctic Islands (1998-07-23) 12# http://www.spri.cam.ac.uk/bob/periant.htm 13# for information. 14# Unless otherwise specified, we have no time zone information. 15 16# FORMAT is '-00' and STDOFF is 0 for locations while uninhabited. 17 18# Argentina - year-round bases 19# Belgrano II, Confin Coast, -770227-0343737, since 1972-02-05 20# Carlini, Potter Cove, King George Island, -6414-0602320, since 1982-01 21# Esperanza, Hope Bay, -6323-05659, since 1952-12-17 22# Marambio, -6414-05637, since 1969-10-29 23# Orcadas, Laurie I, -6016-04444, since 1904-02-22 24# San Martín, Barry I, -6808-06706, since 1951-03-21 25# (except 1960-03 / 1976-03-21) 26 27# Australia - territories 28# Heard Island, McDonald Islands (uninhabited) 29# previously sealers and scientific personnel wintered 30# Margaret Turner reports 31# https://web.archive.org/web/20021204222245/http://www.dstc.qut.edu.au/DST/marg/daylight.html 32# (1999-09-30) that they're UT +05, with no DST; 33# presumably this is when they have visitors. 34# 35# year-round bases 36# Casey, Bailey Peninsula, -6617+11032, since 1969 37# Davis, Vestfold Hills, -6835+07759, since 1957-01-13 38# (except 1964-11 - 1969-02) 39# Mawson, Holme Bay, -6736+06253, since 1954-02-13 40 41# From Steffen Thorsen (2009-03-11): 42# Three Australian stations in Antarctica have changed their time zone: 43# Casey moved from UTC+8 to UTC+11 44# Davis moved from UTC+7 to UTC+5 45# Mawson moved from UTC+6 to UTC+5 46# The changes occurred on 2009-10-18 at 02:00 (local times). 47# 48# Government source: (Australian Antarctic Division) 49# http://www.aad.gov.au/default.asp?casid=37079 50# 51# We have more background information here: 52# https://www.timeanddate.com/news/time/antarctica-new-times.html 53 54# From Steffen Thorsen (2010-03-10): 55# We got these changes from the Australian Antarctic Division: ... 56# 57# - Casey station reverted to its normal time of UTC+8 on 5 March 2010. 58# The change to UTC+11 is being considered as a regular summer thing but 59# has not been decided yet. 60# 61# - Davis station will revert to its normal time of UTC+7 at 10 March 2010 62# 20:00 UTC. 63# 64# - Mawson station stays on UTC+5. 65# 66# Background: 67# https://www.timeanddate.com/news/time/antartica-time-changes-2010.html 68 69# From Steffen Thorsen (2016-10-28): 70# Australian Antarctica Division informed us that Casey changed time 71# zone to UTC+11 in "the morning of 22nd October 2016". 72 73# From Steffen Thorsen (2020-10-02, as corrected): 74# Based on information we have received from the Australian Antarctic 75# Division, Casey station and Macquarie Island station will move to Tasmanian 76# daylight savings time on Sunday 4 October. This will take effect from 0001 77# hrs on Sunday 4 October 2020 and will mean Casey and Macquarie Island will 78# be on the same time zone as Hobart. Some past dates too for this 3 hour 79# time change back and forth between UTC+8 and UTC+11 for Casey: 80# - 2018 Oct 7 4:00 - 2019 Mar 17 3:00 - 2019 Oct 4 3:00 - 2020 Mar 8 3:00 81# and now - 2020 Oct 4 0:01 82 83# From Paul Eggert (2023-12-20): 84# Transitions from 2021 on are taken from: 85# https://www.timeanddate.com/time/zone/antarctica/casey 86# retrieved at various dates. 87 88# Zone NAME STDOFF RULES FORMAT [UNTIL] 89Zone Antarctica/Casey 0 - -00 1969 90 8:00 - %z 2009 Oct 18 2:00 91 11:00 - %z 2010 Mar 5 2:00 92 8:00 - %z 2011 Oct 28 2:00 93 11:00 - %z 2012 Feb 21 17:00u 94 8:00 - %z 2016 Oct 22 95 11:00 - %z 2018 Mar 11 4:00 96 8:00 - %z 2018 Oct 7 4:00 97 11:00 - %z 2019 Mar 17 3:00 98 8:00 - %z 2019 Oct 4 3:00 99 11:00 - %z 2020 Mar 8 3:00 100 8:00 - %z 2020 Oct 4 0:01 101 11:00 - %z 2021 Mar 14 0:00 102 8:00 - %z 2021 Oct 3 0:01 103 11:00 - %z 2022 Mar 13 0:00 104 8:00 - %z 2022 Oct 2 0:01 105 11:00 - %z 2023 Mar 9 3:00 106 8:00 - %z 107Zone Antarctica/Davis 0 - -00 1957 Jan 13 108 7:00 - %z 1964 Nov 109 0 - -00 1969 Feb 110 7:00 - %z 2009 Oct 18 2:00 111 5:00 - %z 2010 Mar 10 20:00u 112 7:00 - %z 2011 Oct 28 2:00 113 5:00 - %z 2012 Feb 21 20:00u 114 7:00 - %z 115Zone Antarctica/Mawson 0 - -00 1954 Feb 13 116 6:00 - %z 2009 Oct 18 2:00 117 5:00 - %z 118# References: 119# Casey Weather (1998-02-26) 120# http://www.antdiv.gov.au/aad/exop/sfo/casey/casey_aws.html 121# Davis Station, Antarctica (1998-02-26) 122# http://www.antdiv.gov.au/aad/exop/sfo/davis/video.html 123# Mawson Station, Antarctica (1998-02-25) 124# http://www.antdiv.gov.au/aad/exop/sfo/mawson/video.html 125 126# Belgium - year-round base 127# Princess Elisabeth, Queen Maud Land, -713412+0231200, since 2007 128 129# Brazil - year-round base 130# Ferraz, King George Island, -6205+05824, since 1983/4 131 132# Bulgaria - year-round base 133# St. Kliment Ohridski, Livingston Island, -623829-0602153, since 1988 134 135# Chile - year-round bases and towns 136# Escudero, South Shetland Is, -621157-0585735, since 1994 137# Frei Montalva, King George Island, -6214-05848, since 1969-03-07 138# O'Higgins, Antarctic Peninsula, -6319-05704, since 1948-02 139# Prat, -6230-05941 140# Villa Las Estrellas (a town), around the Frei base, since 1984-04-09 141# These locations employ Region of Magallanes time; use 142# TZ='America/Punta_Arenas'. 143 144# China - year-round bases 145# Great Wall, King George Island, -6213-05858, since 1985-02-20 146# Zhongshan, Larsemann Hills, Prydz Bay, -6922+07623, since 1989-02-26 147 148# France - year-round bases (also see "France & Italy") 149# 150# From Antoine Leca (1997-01-20): 151# Time data entries are from Nicole Pailleau at the IFRTP 152# (French Institute for Polar Research and Technology). 153# She confirms that French Southern Territories and Terre Adélie bases 154# don't observe daylight saving time, even if Terre Adélie supplies came 155# from Tasmania. 156# 157# French Southern Territories with year-round inhabitants 158# 159# Alfred Faure, Possession Island, Crozet Islands, -462551+0515152, since 1964; 160# sealing & whaling stations operated variously 1802/1911+; 161# see Asia/Dubai. 162# 163# Martin-de-Viviès, Amsterdam Island, -374105+0773155, since 1950 164# Port-aux-Français, Kerguelen Islands, -492110+0701303, since 1951; 165# whaling & sealing station operated 1908/1914, 1920/1929, and 1951/1956 166# 167# St Paul Island - near Amsterdam, uninhabited 168# fishing stations operated variously 1819/1931 169# 170# Kerguelen 171# Zone NAME STDOFF RULES FORMAT [UNTIL] 172Zone Indian/Kerguelen 0 - -00 1950 # Port-aux-Français 173 5:00 - +05 174 175# 176# year-round base in the main continent 177# Dumont d'Urville, Île des Pétrels, -6640+14001, since 1956-11 178# Zone NAME STDOFF RULES FORMAT [UNTIL] 179Zone Antarctica/DumontDUrville 0 - -00 1947 180 10:00 - +10 1952 Jan 14 181 0 - -00 1956 Nov 182 10:00 - +10 183 184# France & Italy - year-round base 185# Concordia, -750600+1232000, since 2005 186 187# Germany - year-round base 188# Neumayer III, -704080-0081602, since 2009 189 190# India - year-round bases 191# Bharati, -692428+0761114, since 2012 192# Maitri, -704558+0114356, since 1989 193 194# Italy - year-round base (also see "France & Italy") 195# Zuchelli, Terra Nova Bay, -744140+1640647, since 1986 196 197# Japan - year-round bases 198# Syowa (also known as Showa), -690022+0393524, since 1957 199# Zone NAME STDOFF RULES FORMAT [UNTIL] 200Zone Antarctica/Syowa 0 - -00 1957 Jan 29 201 3:00 - +03 202 203 204# S Korea - year-round base 205# Jang Bogo, Terra Nova Bay, -743700+1641205 since 2014 206# King Sejong, King George Island, -6213-05847, since 1988 207 208# New Zealand - claims 209# Balleny Islands (never inhabited) 210# Scott Island (never inhabited) 211# 212# year-round base 213# Scott Base, Ross Island, since 1957-01. 214# See Pacific/Auckland. 215 216# Norway - territories 217# Bouvet (never inhabited) 218# 219# claims 220# Peter I Island (never inhabited) 221# 222# year-round base 223# Troll, Queen Maud Land, -720041+0023206, since 2005-02-12 224# 225# From Paul-Inge Flakstad (2014-03-10): 226# I recently had a long dialog about this with the developer of timegenie.com. 227# In the absence of specific dates, he decided to choose some likely ones: 228# GMT +1 - From March 1 to the last Sunday in March 229# GMT +2 - From the last Sunday in March until the last Sunday in October 230# GMT +1 - From the last Sunday in October until November 7 231# GMT +0 - From November 7 until March 1 232# The dates for switching to and from UTC+0 will probably not be absolutely 233# correct, but they should be quite close to the actual dates. 234# 235# From Paul Eggert (2014-03-21): 236# The CET-switching Troll rules require zic from tz 2014b or later, so as 237# suggested by Bengt-Inge Larsson comment them out for now, and approximate 238# with only UTC and CEST. Uncomment them when 2014b is more prevalent. 239# 240# Rule NAME FROM TO - IN ON AT SAVE LETTER/S 241#Rule Troll 2005 max - Mar 1 1:00u 1:00 +01 242Rule Troll 2005 max - Mar lastSun 1:00u 2:00 +02 243#Rule Troll 2005 max - Oct lastSun 1:00u 1:00 +01 244#Rule Troll 2004 max - Nov 7 1:00u 0:00 +00 245# Remove the following line when uncommenting the above '#Rule' lines. 246Rule Troll 2004 max - Oct lastSun 1:00u 0:00 +00 247# Zone NAME STDOFF RULES FORMAT [UNTIL] 248Zone Antarctica/Troll 0 - -00 2005 Feb 12 249 0:00 Troll %s 250 251# Poland - year-round base 252# Arctowski, King George Island, -620945-0582745, since 1977 253 254# Romania - year-bound base 255# Law-Racoviță, Larsemann Hills, -692319+0762251, since 1986 256 257# Russia - year-round bases 258# Bellingshausen, King George Island, -621159-0585337, since 1968-02-22 259# Mirny, Davis coast, -6633+09301, since 1956-02 260# Molodezhnaya, Alasheyev Bay, -6740+04551, 261# year-round from 1962-02 to 1999-07-01 262# Novolazarevskaya, Queen Maud Land, -7046+01150, 263# year-round from 1960/61 to 1992 264 265# Vostok, since 1957-12-16, temporarily closed 1994-02/1994-11 266# From Craig Mundell (1994-12-15): 267# http://quest.arc.nasa.gov/antarctica/QA/computers/Directions,Time,ZIP 268# Vostok, which is one of the Russian stations, is set on the same 269# time as Moscow, Russia. 270# 271# From Lee Hotz (2001-03-08): 272# I queried the folks at Columbia who spent the summer at Vostok and this is 273# what they had to say about time there: 274# "in the US Camp (East Camp) we have been on New Zealand (McMurdo) 275# time, which is 12 hours ahead of GMT. The Russian Station Vostok was 276# 6 hours behind that (although only 2 miles away, i.e. 6 hours ahead 277# of GMT). This is a time zone I think two hours east of Moscow. The 278# natural time zone is in between the two: 8 hours ahead of GMT." 279# 280# From Paul Eggert (2001-05-04): 281# This seems to be hopelessly confusing, so I asked Lee Hotz about it 282# in person. He said that some Antarctic locations set their local 283# time so that noon is the warmest part of the day, and that this 284# changes during the year and does not necessarily correspond to mean 285# solar noon. So the Vostok time might have been whatever the clocks 286# happened to be during their visit. So we still don't really know what time 287# it is at Vostok. 288# 289# From Zakhary V. Akulov (2023-12-17 22:00:48 +0700): 290# ... from December, 18, 2023 00:00 by my decision the local time of 291# the Antarctic research base Vostok will correspond to UTC+5. 292# (2023-12-19): We constantly interact with Progress base, with company who 293# builds new wintering station, with sledge convoys, with aviation - they all 294# use UTC+5. Besides, difference between Moscow time is just 2 hours now, not 4. 295# (2023-12-19, in response to the question "Has local time at Vostok 296# been UTC+6 ever since 1957, or has it changed before?"): No. At least 297# since my antarctic career start, 10 years ago, Vostok base has UTC+7. 298# (In response to a 2023-12-18 question "from 02:00 to 00:00 today"): This. 299# 300# From Paul Eggert (2023-12-18): 301# For lack of better info, guess Vostok was at +07 from founding through today, 302# except when closed. 303 304# Zone NAME STDOFF RULES FORMAT [UNTIL] 305Zone Antarctica/Vostok 0 - -00 1957 Dec 16 306 7:00 - %z 1994 Feb 307 0 - -00 1994 Nov 308 7:00 - %z 2023 Dec 18 2:00 309 5:00 - %z 310 311# S Africa - year-round bases 312# Marion Island, -4653+03752 313# SANAE IV, Vesleskarvet, Queen Maud Land, -714022-0025026, since 1997 314 315# Ukraine - year-round base 316# Vernadsky (formerly Faraday), Galindez Island, -651445-0641526, since 1954 317 318# United Kingdom 319# 320# British Antarctic Territories (BAT) claims 321# South Orkney Islands 322# scientific station from 1903 323# whaling station at Signy I 1920/1926 324# South Shetland Islands 325# 326# year-round bases 327# Bird Island, South Georgia, -5400-03803, since 1983 328# Deception Island, -6259-06034, whaling station 1912/1931, 329# scientific station 1943/1967, 330# previously sealers and a scientific expedition wintered by accident, 331# and a garrison was deployed briefly 332# Halley, Coates Land, -7535-02604, since 1956-01-06 333# Halley is on a moving ice shelf and is periodically relocated 334# so that it is never more than 10km from its nominal location. 335# Rothera, Adelaide Island, -6734-6808, since 1976-12-01 336# 337# From Paul Eggert (2002-10-22) 338# <http://webexhibits.org/daylightsaving/g.html> says Rothera is -03 all year. 339# 340# Zone NAME STDOFF RULES FORMAT [UNTIL] 341Zone Antarctica/Rothera 0 - -00 1976 Dec 1 342 -3:00 - %z 343 344# Uruguay - year round base 345# Artigas, King George Island, -621104-0585107 346 347# USA - year-round bases 348# 349# Palmer, Anvers Island, since 1965 (moved 2 miles in 1968) 350# See 'southamerica' for Antarctica/Palmer, since it uses South American DST. 351# 352# McMurdo Station, Ross Island, since 1955-12 353# Amundsen-Scott South Pole Station, continuously occupied since 1956-11-20 354# 355# From Chris Carrier (1996-06-27): 356# Siple, the first commander of the South Pole station, 357# stated that he would have liked to have kept GMT at the station, 358# but that he found it more convenient to keep GMT+12 359# as supplies for the station were coming from McMurdo Sound, 360# which was on GMT+12 because New Zealand was on GMT+12 all year 361# at that time (1957). (Source: Siple's book 90° South.) 362# 363# From Susan Smith 364# http://www.cybertours.com/whs/pole10.html 365# (1995-11-13 16:24:56 +1300, no longer available): 366# We use the same time as McMurdo does. 367# And they use the same time as Christchurch, NZ does.... 368# One last quirk about South Pole time. 369# All the electric clocks are usually wrong. 370# Something about the generators running at 60.1hertz or something 371# makes all of the clocks run fast. So every couple of days, 372# we have to go around and set them back 5 minutes or so. 373# Maybe if we let them run fast all of the time, we'd get to leave here sooner!! 374# 375# See Pacific/Auckland. 376