Iran Standard Time
E35846
Iran Standard Time is the time zone used throughout Iran, set at UTC+3:30 and observed in cities such as Tehran.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Iran Standard Time canonical | 286 |
| Asia/Tehran | 7 |
| Iran Standard Time zone | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T274521 — 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: Iran Standard Time Context triple: [Tehran, isLocatedInTimeZone, Iran Standard Time]
-
A.
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.
-
B.
Pakistan Standard Time
Pakistan Standard Time is the time zone used throughout Pakistan, corresponding to UTC+5 hours.
-
C.
Central European Time
Central European Time is a standard time zone used by many countries in central and western Europe, typically one hour ahead of Coordinated Universal Time (UTC+1).
-
D.
Western European Time
Western European Time is a standard time zone used in parts of Western Europe, including Portugal, that aligns with Coordinated Universal Time (UTC+0) during the non-daylight saving period.
-
E.
Indian Standard Time
Indian Standard Time is the time zone used throughout India, set at UTC+5:30.
- 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: Iran Standard Time Target entity description: Iran Standard Time is the time zone used throughout Iran, set at UTC+3:30 and observed in cities such as Tehran.
-
A.
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.
-
B.
Pakistan Standard Time
Pakistan Standard Time is the time zone used throughout Pakistan, corresponding to UTC+5 hours.
-
C.
Central European Time
Central European Time is a standard time zone used by many countries in central and western Europe, typically one hour ahead of Coordinated Universal Time (UTC+1).
-
D.
Western European Time
Western European Time is a standard time zone used in parts of Western Europe, including Portugal, that aligns with Coordinated Universal Time (UTC+0) during the non-daylight saving period.
-
E.
Indian Standard Time
Indian Standard Time is the time zone used throughout India, set at UTC+5:30.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf | time zone ⓘ |
| appliesToTerritory |
Iranian islands in the Persian Gulf
ⓘ
mainland Iran ⓘ |
| country | Iran ⓘ |
| DSTAbbreviation | IRDT ⓘ |
| DSTVariantUTCOffset | +04:30 ⓘ |
| halfHourOffset | true ⓘ |
| hasDSTVariant | Iran Daylight Time ⓘ |
| IANAZoneName | Asia/Tehran ⓘ |
| observedAllYear | true ⓘ |
| offsetFromCoordinatedUniversalTime | UTC+3:30 ⓘ |
| region | Asia ⓘ |
| standardAbbreviation | IRST ⓘ |
| timeNotation | 24-hour clock ⓘ |
| usedBy |
Government of Iran
ⓘ
businesses in Iran ⓘ transportation schedules in Iran ⓘ |
| usedInCity |
Ahvaz
ⓘ
Arak ⓘ Bandar Abbas ⓘ Birjand ⓘ Bojnord ⓘ Bushehr ⓘ Gorgan ⓘ Hamadan ⓘ Ilam ⓘ Isfahan ⓘ Karaj ⓘ Kerman ⓘ Kermanshah ⓘ Khorramabad ⓘ Mashhad ⓘ Qazvin ⓘ Qom ⓘ Rasht ⓘ Sanandaj ⓘ Semnan ⓘ
linked to:
Semnan Province
Shahrekord ⓘ Shiraz ⓘ
linked to:
Shiraz, Iran
Tabriz ⓘ Tehran ⓘ Urmia ⓘ Yasuj ⓘ Yazd ⓘ Zahedan ⓘ Zanjan ⓘ |
| UTCOffset | +03:30 ⓘ |
| UTCOffsetHours | 3.5 ⓘ |
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: Iran Standard Time Description of subject: Iran Standard Time is the time zone used throughout Iran, set at UTC+3:30 and observed in cities such as Tehran.
Referenced by (294)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Qazvin, Iran
subject linked to:
IRST
subject linked to:
IRST
linked to: Iran Standard Time
subject linked to:
IRST
subject linked to:
CBI
subject linked to:
OIIE
subject linked to:
Line 6
Department of Mathematics, Sharif University of Technology
→
locatedInTimeZone
→
Iran Standard Time
ⓘ
subject linked to:
Department of Mathematics
Department of Computer Science, Sharif University of Technology
→
locatedInTimeZone
→
Iran Standard Time
ⓘ
subject linked to:
Department of Computer Science
subject linked to:
Terminal 4