Iran Daylight Time
E189003
Iran Daylight Time is the daylight saving time observed in Iran, advancing clocks one hour ahead of the country’s standard time during the summer months.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Iran Daylight Time canonical | 55 |
| Asia/Tehran | 1 |
| Iran Daylight Time (when observed nationally) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1658216 — 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 Daylight Time Context triple: [Iran Standard Time, hasDSTVariant, Iran Daylight Time]
-
A.
Iran Standard Time
Iran Standard Time is the time zone used throughout Iran, set at UTC+3:30 and observed in cities such as Tehran.
-
B.
Israel Daylight Time
Israel Daylight Time is the daylight saving time observed in Israel, typically used during the summer months when clocks are set one hour ahead of standard time.
-
C.
Azerbaijan Time
Azerbaijan Time is the standard time zone used throughout Azerbaijan, typically four hours ahead of Coordinated Universal Time (UTC+4).
-
D.
Arabia Standard Time
Arabia Standard Time is the time zone used by several countries on the Arabian Peninsula, including Saudi Arabia, typically corresponding to UTC+3 with no daylight saving time.
-
E.
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.
- 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 Daylight Time Target entity description: Iran Daylight Time is the daylight saving time observed in Iran, advancing clocks one hour ahead of the country’s standard time during the summer months.
-
A.
Iran Standard Time
Iran Standard Time is the time zone used throughout Iran, set at UTC+3:30 and observed in cities such as Tehran.
-
B.
Israel Daylight Time
Israel Daylight Time is the daylight saving time observed in Israel, typically used during the summer months when clocks are set one hour ahead of standard time.
-
C.
Azerbaijan Time
Azerbaijan Time is the standard time zone used throughout Azerbaijan, typically four hours ahead of Coordinated Universal Time (UTC+4).
-
D.
Arabia Standard Time
Arabia Standard Time is the time zone used by several countries on the Arabian Peninsula, including Saudi Arabia, typically corresponding to UTC+3 with no daylight saving time.
-
E.
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.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
daylight saving time
ⓘ
time zone ⓘ |
| abbreviation | IRDT ⓘ |
| appliesDuring | summer months ⓘ |
| appliesToEntireCountry | true ⓘ |
| country | Iran ⓘ |
| hasSingleNationalTimeZone | true ⓘ |
| isSeasonal | true ⓘ |
| observanceDependsOnLaw | true ⓘ |
| observedInCapital | Tehran ⓘ |
| observedInCity |
Ahvaz
ⓘ
Arak ⓘ Bandar Abbas ⓘ Birjand ⓘ Bojnord ⓘ Bushehr ⓘ Gorgan ⓘ Hamadan ⓘ Hamedan ⓘ
linked to:
Hamadan
Ilam ⓘ Isfahan ⓘ Karaj ⓘ Karaj metropolitan area ⓘ
linked to:
Karaj
Kerman ⓘ Kermanshah ⓘ Khorramabad ⓘ Mashhad ⓘ Qazvin ⓘ Qom ⓘ Rasht ⓘ Sanandaj ⓘ Sari ⓘ Semnan ⓘ
linked to:
Semnan Province
Shahrekord ⓘ Shiraz ⓘ
linked to:
Shiraz, Iran
Tabriz ⓘ Urmia ⓘ Yasuj ⓘ Yazd ⓘ Zahedan ⓘ Zanjan ⓘ |
| offsetFromIranStandardTime | +01:00 ⓘ |
| region | Asia ⓘ |
| relatedTimeZone | Iran Standard Time ⓘ |
| standardTimeRelative | Iran Standard Time ⓘ |
| timeAdvanceFromStandard | one hour ⓘ |
| usedForCivilTimekeeping | true ⓘ |
| uses24HourClock | true ⓘ |
| UTCOffset | UTC+04:30 ⓘ |
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 Daylight Time Description of subject: Iran Daylight Time is the daylight saving time observed in Iran, advancing clocks one hour ahead of the country’s standard time during the summer months.
Referenced by (57)
Full triples — surface form annotated when it differs from this entity's canonical label.