Korea Standard Time
E45216
Korea Standard Time is the time zone used on the Korean Peninsula, set at UTC+9 hours.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Korea Standard Time canonical | 578 |
| KST | 2 |
| 한국 표준시 | 2 |
| Asia/Seoul | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T356124 — 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: Korea Standard Time Context triple: [North Korea, timeZone, Korea Standard Time]
-
A.
Japan Standard Time
Japan Standard Time is the standard time zone used throughout Japan, set at nine hours ahead of Coordinated Universal Time (UTC+9) without daylight saving time.
-
B.
China Standard Time
China Standard Time is the single official time zone used throughout mainland China, corresponding to UTC+8.
-
C.
Hawaii–Aleutian Standard Time
Hawaii–Aleutian Standard Time is the time zone used by Hawaii and part of the Aleutian Islands, typically 10 hours behind Coordinated Universal Time (UTC−10:00).
-
D.
Gulf Standard Time
Gulf Standard Time is the time zone used by several Gulf countries, including the United Arab Emirates, which is four hours ahead of Coordinated Universal Time (UTC+4) and does not observe daylight saving time.
-
E.
Vladivostok Time (VLAT)
Vladivostok Time (VLAT) is a time zone used in Russia’s Far East, including the city of Vladivostok, typically set nine hours ahead of Coordinated Universal Time (UTC+9).
- 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: Korea Standard Time Target entity description: Korea Standard Time is the time zone used on the Korean Peninsula, set at UTC+9 hours.
-
A.
Japan Standard Time
Japan Standard Time is the standard time zone used throughout Japan, set at nine hours ahead of Coordinated Universal Time (UTC+9) without daylight saving time.
-
B.
China Standard Time
China Standard Time is the single official time zone used throughout mainland China, corresponding to UTC+8.
-
C.
Hawaii–Aleutian Standard Time
Hawaii–Aleutian Standard Time is the time zone used by Hawaii and part of the Aleutian Islands, typically 10 hours behind Coordinated Universal Time (UTC−10:00).
-
D.
Gulf Standard Time
Gulf Standard Time is the time zone used by several Gulf countries, including the United Arab Emirates, which is four hours ahead of Coordinated Universal Time (UTC+4) and does not observe daylight saving time.
-
E.
Vladivostok Time (VLAT)
Vladivostok Time (VLAT) is a time zone used in Russia’s Far East, including the city of Vladivostok, typically set nine hours ahead of Coordinated Universal Time (UTC+9).
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | time zone ⓘ |
| abbreviation |
Korea Standard Time
self-linksurface differs
ⓘ
surface form:
KST
|
| continent | Asia ⓘ |
| country |
North Korea
ⓘ
South Korea ⓘ |
| currentOffsetInNorthKoreaSince | 2018 ⓘ |
| currentOffsetInSouthKoreaSince | 1961 ⓘ |
| DSTCurrentlyObservedInNorthKorea | no ⓘ |
| DSTCurrentlyObservedInSouthKorea | no ⓘ |
| DSTObserved | false ⓘ |
| follows | Coordinated Universal Time ⓘ |
| historicalOffset | UTC+08:30 ⓘ |
| historicalOffsetUsedFrom |
UTC+08:30 used 1908–1912
ⓘ
UTC+08:30 used 1954–1961 in South Korea ⓘ UTC+08:30 used 2015–2018 in North Korea ⓘ |
| IANAZoneName |
Pyongyang Time
ⓘ
surface form:
Asia/Pyongyang
Korea Standard Time self-linksurface differs ⓘ
surface form:
Asia/Seoul
|
| introducedInKorea | 1908 ⓘ |
| languageContext | Korean language ⓘ |
| legalStatus |
official standard time defined by North Korean law
ⓘ
official standard time defined by South Korean law ⓘ |
| nativeName |
Korea Standard Time
self-linksurface differs
ⓘ
surface form:
한국 표준시
|
| nativeNameRomanization |
Aegukga
ⓘ
surface form:
Hanguk Pyojunsi
|
| observesDSTHistorically | yes (South Korea 1948–1960s, intermittently) ⓘ |
| offsetFromUTCInHours | 9 ⓘ |
| offsetInSeconds | 32400 ⓘ |
| region | Korean Peninsula ⓘ |
| sameOffsetAs |
Japan Standard Time
ⓘ
Yakutsk Time (seasonally, depending on Russian DST history) ⓘ
surface form:
Yakutsk Time (standard)
|
| standardTimeOf |
North Korea
ⓘ
surface form:
Democratic People’s Republic of Korea
South Korea ⓘ
surface form:
Republic of Korea
|
| timeNotation | 24-hour clock (official) ⓘ |
| timeZoneCode |
Korea Standard Time
self-linksurface differs
ⓘ
surface form:
KST
|
| typicalCity |
Busan
ⓘ
Incheon ⓘ Pyongyang ⓘ Seoul ⓘ |
| usedByBroadcasting | Korean television networks ⓘ |
| usedByMilitary |
Korean People's Army
ⓘ
surface form:
Korean People’s Army
Republic of Korea Armed Forces (operationally associated) ⓘ
surface form:
Republic of Korea Armed Forces
|
| usedByStockExchange | Korea Exchange (KRX) ⓘ |
| usedFor |
civil timekeeping in North Korea
ⓘ
civil timekeeping in South Korea ⓘ |
| usedInCapital |
Pyongyang
ⓘ
Seoul ⓘ |
| usesDaylightSavingTime | no ⓘ |
| UTCOffset | UTC+09:00 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Korea Standard Time Description of subject: Korea Standard Time is the time zone used on the Korean Peninsula, set at UTC+9 hours.
Referenced by (583)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Icheon
present-day Jeongeup, North Jeolla Province, South Korea
→
locatedInTimeZone
→
Korea Standard Time
ⓘ
subject surface form:
Jeongeup
subject surface form:
Ulsan