Omsk Time
{{Short description|Time zone in Russia (UTC+6)}}
{{Time zones of Russia}}
Omsk Time (OMST) is a time zone in Russia that is six hours ahead of UTC (UTC+06:00), and 3 hours ahead of Moscow Time (MSK). It is used in Omsk Oblast.
{{cite web|url=http://www.timetemperature.com/europe/russia_time_zones.shtml|title=RUSSIA TIME ZONES - RUSSIA CURRENT TIMES|publisher=TimeTemperature.com|access-date=15 July 2012}}
History
Until 1991, Omsk Time was one of the two time zones used in Soviet Central Asia. In addition to Omsk Oblast in the Russian SFSR, it covered the eastern two thirds of Kazakh SSR, all of Kyrgyz and Tajik SSRs, and eastern Uzbek SSR. This included the city of Omsk and the capitals Alma-Ata (Almaty), Frunze (Bishkek), Dushanbe and Tashkent.
For two years after the collapse of the Soviet Union, Omsk Oblast remained the only region in Russia in this time zone. The newly independent Central Asian states ceased to observe daylight saving time, while Uzbekistan and Tajikistan in addition "moved west" by adjusting the clocks one hour back.
From the 1990s to the 2010s, Russia experienced a countrywide wave of clock shifts towards Moscow. By 2010, all Western Siberia's Moscow+4 regions moved to Moscow+3, merging into Omsk Time.
In 2011, Russia moved to year-round daylight saving time. Instead of switching between UTC+06:00 in winter and UTC+07:00 in summer, Omsk time was set to UTC+07:00 until 2014, when it was reset back to UTC+06:00 year-round, but Kemerovo Oblast decided to stay in UTC+07:00 - Krasnoyarsk Time.
In 2016, Altai Krai, Altai Republic,{{Cite web |url=http://gost.ru/wps/portal/pages/news/?article_rss_id=3279 |title=Новости - Федеральное агентство по техническому регулированию и метрологии (РОССТАНДАРТ) |access-date=2017-02-04 |archive-url=https://web.archive.org/web/20171210065020/http://gost.ru/wps/portal/pages/news/?article_rss_id=3279 |archive-date=2017-12-10 |url-status=dead }} Tomsk Oblast,{{Cite web |date=2016-04-20 |title=СФ одобрил перевод времени в Томской области на час вперед |url=https://aif.ru/society/sf_odobril_perevod_vremeni_v_tomskoy_oblasti_na_chas_vpered |access-date=2024-03-09 |website=AiF |language=ru}} and Novosibirsk Oblast{{Cite web|url=http://news.ngs.ru/more/2484893/|title=Госдума окончательно утвердила перевод стрелок в НСО на час вперед|date=21 June 2016|publisher=news.ngs.ru|access-date=2016-06-22}} switched to Krasnoyarsk Time (UTC+07:00).
Omsk Oblast is now the only part of Russia which uses this time zone.
| class="wikitable sortable"
|+ Changes in area observing Omsk Time |
| Date
! region(s) ! Type of change ! IANA time zone (tzid) |
|---|
| | Eastern 2/3 Kazakhstan
| leave |
| | East Uzbekistan
| leave |
| | Tajikistan
| leave |
| 1993-05-23
| Novosibirsk Oblast Новосибирская область переводится из шестого часового пояса в пятый 23 мая в 00 часов 00 минут. (No. 21, 22.05.1993) http://vedomosti.sfo.ru/articles/?article=20345 {{Webarchive|url=https://web.archive.org/web/20160315150738/http://vedomosti.sfo.ru/articles/?article=20345 |date=2016-03-15 }} | join |
| 1995-05-28
| Altai Krai and Altai Republic {{Cite Russian law |ru_entity=Государственное Собрание — Эл Курултай Республики Алтай |ru_type=Постановление |ru_number=8-11 |ru_date=6 апреля 1995 г. |ru_title=О переводе Республики Алтай в пятый часовой пояс |ru_effective_date= |ru_published_in="Сборник Ведомости Государственного Собрания - Эл Курултай Республики Алтай", No.8 |ru_published_date=12 декабря 1995 г |en_entity=State Assembly—El Kurultai of the Altai Republic |en_type=Resolution |en_number=8-11 |en_date=6 April 1995 |en_title=On Transferring the Altai Republic to the Fifth Time Zone |en_effective_date= }} | join |
| 2002-05-01
| Tomsk Oblast{{Cite web|url=http://newsru.com/russia/01may2002/clock.html|title=С 1 мая Томская область перешла в новый часовой пояс|date=May 2002}}{{Cite Russian law |ru_entity=Правительство Российской Федерации |ru_type=Постановление |ru_number=246 |ru_date=17 апреля 2002 г. |ru_title=О применении на территории Томской области времени пятого часового пояса |ru_effective_date= |ru_published_in="Российская газета" |ru_published_date=24 апреля 2002 г |en_entity=Government of the Russian Federation |en_type=Resolution |en_number=246 |en_date=17 April 2002 |en_title=On Using the Time of the Fifth Time Zone on the Territory of Tomsk Oblast |en_effective_date= }} | join |
| 2010-03-28
| Kemerovo Oblast{{cite web |url=http://government.ru/gov/results/7752/ |title=Интернет-портал Правительства Российской Федерации / Правительство России |access-date=2011-07-24 |url-status=dead |archive-url=https://web.archive.org/web/20110724164419/http://government.ru/gov/results/7752/ |archive-date=2011-07-24 }}{{Cite Russian law |ru_entity=Правительство Российской Федерации |ru_type=Постановление |ru_number=740 |ru_date=14 сентября 2009 г. |ru_title=О применении на территории Кемеровской области времени пятого часового пояса |ru_effective_date |ru_published_in |ru_published_date |ru_url |en_entity=Government of the Russian Federation |en_type=Resolution |en_number=740 |en_date=September 14, 2009 |en_title=On Using the Time of the Fifth Time Zone on the Territory of Kemerovo Oblast |en_effective_date |en_url }} | join |
| 2014
|Kemerovo Oblast |leave |
| 2016-03-27
|Altai Krai and Altai Republic |leave |
| 2016-05-29
|Tomsk Oblast |leave |
| 2016-07-24
|Novosibirsk Oblast |leave |