'Omsk Time' ('OMST') is the
time zone 6 hours ahead of
UTC (
UTC+6) and 3 hours ahead of
Moscow Time (MSK+3). Omsk Summer Time (OMSST) is
UTC+7, still 3 hours ahead of Moscow (MSD+3). It is the official time in
Omsk Oblast and,
as of 2006, most other West Siberian regions in
Russia (although there, it is interchangeably referred to as "
Novosibirsk Time", see Use below). During the northern winter, the time zone is also used in central and eastern
Kazakhstan and all of
Kyrgyzstan.
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,
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.
In 1990s-2000s, Russia experienced a countrywide wave of clock shifts towards Moscow. By 2006, all except one of Western Siberia's Moscow+4 regions moved to Moscow+3, merging into Omsk Time: Novosibirsk Oblast in 1993
[1],
Altai Krai in 1994
[2],
Tomsk Oblast on May 1st, 2002
[3], and
Altai Republic on an unknown date.
Kemerovo Oblast remains the only region in the area on Moscow+4 "
Krasnoyarsk Time".
Use
Although the standard Omsk and Novosibirsk time zones are currently identical, each name is still in use depending on context, which is sometimes confusing or even contradictory. The term "Omsk Time" is mostly used in
Omsk or when emphasizing the traditional Moscow+3 zone, as in "Tomsk followed Novosibirsk into the Omsk Time Zone". The term "Novosibirsk Time" is more widely used in the remainder of West Siberia, enforced by the common Moscow+4 past. Outdated and incorrect information is still rampant, including one-hour-early New Year's broadcast on national TV channels for Barnaul and Tomsk.
Major cities in the Omsk Time Zone:
★
Almaty (during northern winter)
★
Astana (during northern winter)
★
Barnaul
★
Bishkek (during northern winter)
★
Novosibirsk
★
Omsk
★
Tomsk