From 1d0ae801a6fa85ba824ca6c017f75eab54657eba Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Mon, 18 Dec 2023 23:27:30 -0800 Subject: [PATCH] Vostok was at +07 and just switched to +05 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * NEWS: Mention this. * backzone (Antarctica/Vostok): Move from here ... * antarctica (Antarctica/Vostok): ... to here, with fixes from Zakhary V. Akulov. Also, record 1994 closure. * backward (Antarctica/Vostok): Remove Link, as it’s now a Zone. * zone1970.tab (Antarctica/Vostok): Copy entry from zone.tab. (Asia/Urumqi): No longer a standin for Vostok. Conclicts: remove the NEWS, aisa, backzone, zone1970.tab part and adapt antarctica because don't backport 0b925f6d8 --- antarctica | 69 ++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 44 insertions(+), 25 deletions(-) diff --git a/antarctica b/antarctica index fc603e99..9931378b 100644 --- a/antarctica +++ b/antarctica @@ -240,31 +240,50 @@ Zone Antarctica/Troll 0 - -00 2005 Feb 12 # year-round from 1960/61 to 1992 # Vostok, since 1957-12-16, temporarily closed 1994-02/1994-11 -# From Craig Mundell (1994-12-15): -# http://quest.arc.nasa.gov/antarctica/QA/computers/Directions,Time,ZIP -# Vostok, which is one of the Russian stations, is set on the same -# time as Moscow, Russia. -# -# From Lee Hotz (2001-03-08): -# I queried the folks at Columbia who spent the summer at Vostok and this is -# what they had to say about time there: -# "in the US Camp (East Camp) we have been on New Zealand (McMurdo) -# time, which is 12 hours ahead of GMT. The Russian Station Vostok was -# 6 hours behind that (although only 2 miles away, i.e. 6 hours ahead -# of GMT). This is a time zone I think two hours east of Moscow. The -# natural time zone is in between the two: 8 hours ahead of GMT." -# -# From Paul Eggert (2001-05-04): -# This seems to be hopelessly confusing, so I asked Lee Hotz about it -# in person. He said that some Antarctic locations set their local -# time so that noon is the warmest part of the day, and that this -# changes during the year and does not necessarily correspond to mean -# solar noon. So the Vostok time might have been whatever the clocks -# happened to be during their visit. So we still don't really know what time -# it is at Vostok. But we'll guess +06. -# -Zone Antarctica/Vostok 0 - -00 1957 Dec 16 - 6:00 - +06 +# From Craig Mundell (1994-12-15): +# http://quest.arc.nasa.gov/antarctica/QA/computers/Directions,Time,ZIP +# Vostok, which is one of the Russian stations, is set on the same +# time as Moscow, Russia. +# +# From Lee Hotz (2001-03-08): +# I queried the folks at Columbia who spent the summer at Vostok and this is +# what they had to say about time there: +# "in the US Camp (East Camp) we have been on New Zealand (McMurdo) +# time, which is 12 hours ahead of GMT. The Russian Station Vostok was +# 6 hours behind that (although only 2 miles away, i.e. 6 hours ahead +# of GMT). This is a time zone I think two hours east of Moscow. The +# natural time zone is in between the two: 8 hours ahead of GMT." +# +# From Paul Eggert (2001-05-04): +# This seems to be hopelessly confusing, so I asked Lee Hotz about it +# in person. He said that some Antarctic locations set their local +# time so that noon is the warmest part of the day, and that this +# changes during the year and does not necessarily correspond to mean +# solar noon. So the Vostok time might have been whatever the clocks +# happened to be during their visit. So we still don't really know what time +# it is at Vostok. +# +# From Zakhary V. Akulov (2023-12-17 22:00:48 +0700): +# ... from December, 18, 2023 00:00 by my decision the local time of +# the Antarctic research base Vostok will correspond to UTC+5. +# (2023-12-19): We constantly interact with Progress base, with company who +# builds new wintering station, with sledge convoys, with aviation - they all +# use UTC+5. Besides, difference between Moscow time is just 2 hours now, not 4. +# (2023-12-19, in response to the question "Has local time at Vostok +# been UTC+6 ever since 1957, or has it changed before?"): No. At least +# since my antarctic career start, 10 years ago, Vostok base has UTC+7. +# (In response to a 2023-12-18 question "from 02:00 to 00:00 today"): This. +# +# From Paul Eggert (2023-12-18): +# For lack of better info, guess Vostok was at +07 from founding through today, +# except when closed. + +# Zone NAME STDOFF RULES FORMAT [UNTIL] +Zone Antarctica/Vostok 0 - -00 1957 Dec 16 + 7:00 - +07 1994 Feb + 0 - -00 1994 Nov + 7:00 - +07 2023 Dec 18 2:00 + 5:00 - +05 # S Africa - year-round bases # Marion Island, -4653+03752 -- 2.23.0