Yakutsk Time (seasonally, depending on Russian DST history)

E10242

time zone

Yakutsk Time is a time zone used in eastern Russia that has seasonally aligned with Japan Standard Time at various points depending on Russia’s daylight saving time policies.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (6)

Label	Occurrences
Yakutsk Time	4
Irkutsk Time (during some historical periods)	1
Yakutsk Summer Time	1
Yakutsk Time (seasonally, depending on Russian DST history) canonical	1
Yakutsk Time (standard)	1
Yakutsk Time (summer, historically when DST applied)	1

How this entity was disambiguated

This entity first appeared as the object of triple T105792 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Yakutsk Time (seasonally, depending on Russian DST history)
Context triple: [Japan Standard Time, coincidesWith, Yakutsk Time (seasonally, depending on Russian DST history)]

A. Moscow Time
Moscow Time is the standard time zone used in Moscow and much of western Russia, corresponding to UTC+3 year-round.
B. Eastern European Time
Eastern European Time is a standard time zone used in parts of Eastern Europe and the Eastern Mediterranean, typically two hours ahead of Coordinated Universal Time (UTC+2).
C. Alaska Time Zone
The Alaska Time Zone is the standard time zone used by most of the U.S. state of Alaska, observing a time offset one hour behind Pacific Time.
D. Central European Summer Time
Central European Summer Time is the daylight saving time observed by many central European countries, running one hour ahead of Central European Time during the summer months.
E. Coordinated Universal Time
Coordinated Universal Time (UTC) is the primary global time standard by which the world regulates clocks and time, serving as the basis for most civil time zones.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Yakutsk Time (seasonally, depending on Russian DST history)
Target entity description: Yakutsk Time is a time zone used in eastern Russia that has seasonally aligned with Japan Standard Time at various points depending on Russia’s daylight saving time policies.

A. Moscow Time
Moscow Time is the standard time zone used in Moscow and much of western Russia, corresponding to UTC+3 year-round.
B. Eastern European Time
Eastern European Time is a standard time zone used in parts of Eastern Europe and the Eastern Mediterranean, typically two hours ahead of Coordinated Universal Time (UTC+2).
C. Alaska Time Zone
The Alaska Time Zone is the standard time zone used by most of the U.S. state of Alaska, observing a time offset one hour behind Pacific Time.
D. Central European Summer Time
Central European Summer Time is the daylight saving time observed by many central European countries, running one hour ahead of Central European Time during the summer months.
E. Coordinated Universal Time
Coordinated Universal Time (UTC) is the primary global time standard by which the world regulates clocks and time, serving as the basis for most civil time zones.
F. None of above. chosen

Statements (39)

Predicate	Object
instanceOf	time zone ⓘ
alignmentWithJSTDependsOn	Russian daylight saving time policies ⓘ
appliesToRegion	Amur Oblast ⓘ Sakha Republic ⓘ Yakutsk ⓘ Zabaykalsky Krai ⓘ
country	Russia ⓘ
governingAuthority	Federal Service for Technical Regulation and Metrology of Russia ⓘ Government of Russia ⓘ linked to: Government of the Russian Federation
hasAbbreviation	YAKST ⓘ YAKT ⓘ
hasSameTimeAs	Chita Time ⓘ Eastern Indonesia Time ⓘ linked to: Timor Leste Time Irkutsk Time (during some historical periods) ⓘ linked to: Yakutsk Time (seasonally, depending on Russian DST history) Japan Standard Time ⓘ Korea Standard Time ⓘ Palau Time ⓘ Timor Leste Time ⓘ
historicalDSTPractice	clock advanced by one hour during summer in some years ⓘ
historicallyAlignedSeasonallyWith	Japan Standard Time ⓘ
historicalRelationToJST	coincided with JST during periods without DST offset differences ⓘ
IANAZoneIdentifier	Asia/Yakutsk ⓘ
isAheadOf	Coordinated Universal Time by 9 hours ⓘ Moscow Time by 6 hours (in many recent configurations) ⓘ
isDefinedBy	Russian federal law on time calculation ⓘ
isDefinedRelativeTo	UTC ⓘ linked to: Coordinated Universal Time
isPartOf	Russian time zone system ⓘ
isUsedFor	civil timekeeping in Yakutsk region ⓘ
isUsedIn	eastern Russia ⓘ linked to: Russia Far East
observedDST	false (after abolition of DST in Russia) ⓘ true (historically, in some periods) ⓘ
timeNotation	UTC+9 ⓘ
timeType	standard time ⓘ
usedBy	regional administrations in eastern Russia ⓘ residents of Yakutsk ⓘ
UTCOffsetDST	+10:00 ⓘ
UTCOffsetStandard	+09:00 ⓘ
wasAffectedBy	2011 Russian time zone reform ⓘ 2014 Russian time zone reform ⓘ

How these facts were elicited

Referenced by (9)

Full triples — surface form annotated when it differs from this entity's canonical label.

Japan Standard Time → coincidesWith → Yakutsk Time (seasonally, depending on Russian DST history) ⓘ

Yakutsk Time → hasSameTimeAs → Irkutsk Time (during some historical periods) ⓘ

subject linked to: Yakutsk Time (seasonally, depending on Russian DST history)