Time Zone History

Aqtau time zone history

On standard time, clocks at Aqtau run 1 hour 39 minutes ahead of local mean solar time, the ninth-largest gap of the 233 zones whose clocks run ahead of the sun. Daylight saving time was used in 23 years since 1970, last in 2004; under the current rules the clocks no longer change.

UTC+5

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

Covers: Mangghystau region · tz database name Asia/Aqtau

Convert a time from Aqtau

Summer time in 23 of 57 years since 1970

UTC+3:21:04: 1 hour 39 minutes behind today’s standard timeUTC+4: 1 hour behind today’s standard timeUTC+5: today’s standard timeUTC+6: 1 hour ahead of today’s standard timeUTC+3:21:04: 1 hour 39 minutesbehind today’s standard timeUTC+4: 1 hour behind today’sstandard timeUTC+5: today’s standard timeUTC+6: 1 hour ahead of today’sstandard time

How to read this chart

Before 1970

192019301940195019601970192019301940195019601970
JanFebMarAprMayJunJulAugSepOctNovDec1970198019902000201020202028JFMAMJJASOND1970198019902000201020202028

Standard time changes

DateChangeNew standard timeClock label
Before 1970
May 2, 1924Local mean time (UTC+3:21:04) replacedUTC+4numeric only
June 21, 1930Standard time forward 1 hourUTC+5numeric only
Since 1970
October 1, 1981Standard time forward 1 hourUTC+6numeric only
April 1, 1982Summer offset kept as standard time; clocks did not moveUTC+5numeric only
March 31, 1991Summer offset kept as standard time; clocks did not moveUTC+4numeric only
January 19, 1992Standard time forward 1 hourUTC+5numeric only
September 25, 1994Standard time back 1 hourUTC+4numeric only
October 31, 2004Summer offset kept as standard time; clocks did not moveUTC+5numeric only

Daylight saving periods

YearsClocks go forwardClocks go backShift and labels
1982not that yearOctober 11 hour
1983April 1October 11 hour
1984April 1September 301 hour
1985–1990last Sunday in March, 02:00last Sunday in September, 03:001 hour
1991not that yearSeptember 291 hour
1992–1993last Sunday in March, 02:00fourth Sunday in September, 03:001 hour
1994March 27not that year1 hour
1995March 26September 241 hour
1996–2003last Sunday in March, 02:00last Sunday in October, 03:001 hour
2004March 28not that year1 hour

Also on UTC+5

Atyrau (Kazakhstan), Oral (Kazakhstan), Aqtobe (Kazakhstan), Turkmenistan, Qyzylorda (Kazakhstan), Qostanay (Kazakhstan), Samarkand (Uzbekistan), Yekaterinburg (Russia), Tashkent (Uzbekistan) and Tajikistan (nearest first; 5 more on the list of offsets).

Clocks next door since 1970

  • Astrakhan (Russia) (267 km): usually 1 hour behind; different on 3,691 days in 1981–2011 and 2014–2016.
  • Atyrau (317 km): same time except 1,645 days in 1994–1999.
  • Azerbaijan (461 km): usually 1 hour behind; different on 6,840 days in 1981–2015.
  • Georgia (541 km): usually 1 hour behind; different on 5,055 days in 1981–2005.
  • Volgograd (Russia) (647 km): usually 1 hour behind; different on 7,196 days in 1981–2011, 2014–2018 and 2020–2026; 2 hours behind today.