Time Zone History

Vostok Station time zone history

On standard time, clocks at Vostok Station run 2 hours 8 minutes behind local mean solar time, the largest gap of the 79 zones whose clocks run behind the sun. The largest single move came on November 1, 1994, when clocks went forward 7 hours, from UTC+0 to UTC+7. The latest change of standard time came on December 18, 2023, from UTC+7 to UTC+5.

UTC+5

Standard time is UTC+5 all year under the current rules.

Covers: Vostok · tz database name Antarctica/Vostok

Convert a time from Vostok Station

3 times a new standard time since 1970

UTC+5: today’s standard timeUTC+7: 2 hours ahead of today’s standard timeNo local time in the record (station not yet in use)UTC+5: today’s standard timeUTC+7: 2 hours ahead of today’sstandard timeNo local time in the record(station not yet in use)

How to read this chart

Before 1970

195019601970195019601970
JanFebMarAprMayJunJulAugSepOctNovDec1970198019902000201020202028JFMAMJJASOND1970198019902000201020202028

Standard time changes

DateChangeNew standard timeClock label
Before 1970
December 16, 1957First local time in the recordUTC+7numeric only
Since 1970
February 1, 1994Standard time back 7 hoursUTC+0numeric only
November 1, 1994Standard time forward 7 hoursUTC+7numeric only
December 18, 2023Standard time back 2 hoursUTC+5numeric only

Also on UTC+5

Mawson Station (Antarctica), Maldives, Pakistan, Tajikistan, Turkmenistan, Samarkand (Uzbekistan), Tashkent (Uzbekistan), Almaty (Kazakhstan), Qyzylorda (Kazakhstan) and Aqtau (Kazakhstan) (nearest first; 5 more on the list of offsets).

Clocks next door since 1970

  • Casey Station (1,352 km): usually 1 hour ahead; different on 2,940 days in 1994, 2009–2012 and 2016–2026; 3 hours ahead today.
  • Davis Station (1,393 km): same time except 1,645 days in 1994, 2009–2012 and 2023–2026; 2 hours ahead today.
  • Mawson Station (1,791 km): usually 1 hour behind; different on 6,557 days in 1994 and 2009–2026; same time today.
  • Troll Station (2,625 km): usually 7 hours behind; different on 5,458 days in 1994 and 2005–2026; 5 hours behind today.
  • Macquarie Island (Australia) (3,294 km): usually 3 hours ahead; different on 10,193 days in 1970–2026; 5 hours ahead today.