Pacific Time Zone
E7402
The Pacific Time Zone is a North American time zone that covers the U.S. West Coast and parts of Canada and Mexico, typically eight hours behind Coordinated Universal Time (UTC−8) and observing daylight saving time.
All labels observed (16)
How this entity was disambiguated
This entity first appeared as the object of triple T1313 — 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: Pacific Time Zone Context triple: [California, locatedInTimeZone, Pacific Time Zone]
-
A.
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.
-
B.
Eastern Time Zone
The Eastern Time Zone is a standard time zone used by the eastern portion of North America, including major U.S. cities such as New York and Washington, D.C.
-
C.
North American time zones
North American time zones are the standardized regional time divisions used across countries in North America, including zones such as Eastern, Central, Mountain, and Pacific Time.
-
D.
Australian Eastern Daylight Time
Australian Eastern Daylight Time is the daylight saving time observed in parts of eastern Australia, including New South Wales, typically at UTC+11.
-
E.
GMT
GMT (Greenwich Mean Time) is the mean solar time at the Royal Observatory in Greenwich, London, historically used as the international civil time standard and the basis for modern 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: Pacific Time Zone Target entity description: The Pacific Time Zone is a North American time zone that covers the U.S. West Coast and parts of Canada and Mexico, typically eight hours behind Coordinated Universal Time (UTC−8) and observing daylight saving time.
-
A.
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.
-
B.
Eastern Time Zone
The Eastern Time Zone is a standard time zone used by the eastern portion of North America, including major U.S. cities such as New York and Washington, D.C.
-
C.
North American time zones
North American time zones are the standardized regional time divisions used across countries in North America, including zones such as Eastern, Central, Mountain, and Pacific Time.
-
D.
Australian Eastern Daylight Time
Australian Eastern Daylight Time is the daylight saving time observed in parts of eastern Australia, including New South Wales, typically at UTC+11.
-
E.
Newfoundland Time Zone
The Newfoundland Time Zone is a unique North American time zone centered on the Canadian island of Newfoundland, notable for its unusual half-hour offset from standard hour-based time zones.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
North American time zone
ⓘ
time zone ⓘ |
| alsoKnownAs |
PT
ⓘ
Pacific Time Zone ⓘ
surface form:
Pacific Time
|
| appliesInCountry |
Canada
ⓘ
French Polynesia ⓘ Mexico ⓘ United States of America ⓘ
surface form:
United States
|
| appliesInRegion |
Northwestern Mexico
ⓘ
West Coast of the United States ⓘ
surface form:
U.S. West Coast
Western Canada ⓘ |
| continent | North America ⓘ |
| daylightTimeAbbreviation | PDT ⓘ |
| follows | United States daylight saving time rules (most areas) ⓘ |
| includesCity |
Las Vegas, Nevada
ⓘ
surface form:
Las Vegas
Los Angeles ⓘ Oakland ⓘ Portland, Oregon, United States ⓘ
surface form:
Portland, Oregon
Reno ⓘ Sacramento ⓘ San Diego ⓘ San Francisco ⓘ Seattle, Washington, United States ⓘ
surface form:
Seattle
Spokane, Washington ⓘ
surface form:
Spokane
Tijuana ⓘ Vancouver ⓘ Victoria, British Columbia ⓘ |
| includesStateOrProvince |
Alberta
ⓘ
surface form:
Alberta (part, historically)
Baja California ⓘ British Columbia ⓘ California, United States ⓘ
surface form:
California
Idaho ⓘ
surface form:
Idaho (part)
Nevada ⓘ Northwest Territories ⓘ
surface form:
Northwest Territories (part)
Oregon ⓘ Washington ⓘ Yukon ⓘ |
| note | Some regions within the nominal Pacific Time Zone may not observe daylight saving time ⓘ |
| observes | daylight saving time ⓘ |
| standardTimeAbbreviation | PST ⓘ |
| timeDifferenceFromCentralStandard | 2 hours behind ⓘ |
| timeDifferenceFromEasternStandard | 3 hours behind ⓘ |
| timeDifferenceFromGreenwichMeanTimeStandard | 8 hours behind ⓘ |
| timeDifferenceFromMountainStandard | 1 hour behind ⓘ |
| usedBy |
Canadian federal government scheduling in British Columbia and Yukon
ⓘ
United States federal government scheduling on the West Coast ⓘ financial markets operating in Los Angeles ⓘ major U.S. television networks for West Coast feeds ⓘ |
| utcOffsetDaylight | UTC−07:00 ⓘ |
| utcOffsetStandard | UTC−08:00 ⓘ |
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: Pacific Time Zone Description of subject: The Pacific Time Zone is a North American time zone that covers the U.S. West Coast and parts of Canada and Mexico, typically eight hours behind Coordinated Universal Time (UTC−8) and observing daylight saving time.
Referenced by (8,271)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Mecca, California
this entity surface form:
Pacific Daylight Time
this entity surface form:
Pacific Daylight Time
this entity surface form:
Pacific Daylight Time
subject surface form:
Richmond, British Columbia
this entity surface form:
Pacific Daylight Time
subject surface form:
Des Moines, Washington
subject surface form:
Des Moines, Washington
this entity surface form:
Pacific Daylight Time
subject surface form:
Auburn, Washington
subject surface form:
Auburn, Washington
this entity surface form:
Pacific Daylight Time
this entity surface form:
Pacific Daylight Time
subject surface form:
Wadsworth, Nevada
this entity surface form:
Pacific Daylight Time
this entity surface form:
Pacific Daylight Time
subject surface form:
Elmira, California
this entity surface form:
Pacific Daylight Time
subject surface form:
College of Biological Sciences (UC Davis)