Summer Time Act 1916
E58469
The Summer Time Act 1916 was a UK law that first introduced daylight saving time, advancing clocks during the summer months to conserve energy and extend evening daylight.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Summer Time Act 1916 canonical | 3 |
| Summer Time Act 1925 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T463895 — 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: Summer Time Act 1916 Context triple: [British Summer Time, governedBy, Summer Time Act 1916]
-
A.
British Summer Time Act 1972
The British Summer Time Act 1972 is UK legislation that standardized the annual observance of daylight saving time by defining the periods during which clocks are advanced by one hour.
-
B.
Glass–Owen Act
The Glass–Owen Act is the landmark 1913 U.S. law that created the Federal Reserve System as the nation’s central bank to stabilize the financial system and manage monetary policy.
-
C.
McMahon Act
The McMahon Act is a landmark 1946 U.S. law that established civilian control over nuclear energy and restricted the sharing of atomic information, laying the foundation for American nuclear policy during the early Cold War.
-
D.
His Majesty's Declaration of Abdication Act 1936
His Majesty's Declaration of Abdication Act 1936 is the UK statute by which King Edward VIII's abdication was formally recognized, enabling his brother George VI to ascend the throne.
-
E.
August 1917 Montagu Declaration
The August 1917 Montagu Declaration was a British policy statement promising the gradual development of self-governing institutions in India and marking a key step toward constitutional reform under colonial rule.
- 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: Summer Time Act 1916 Target entity description: The Summer Time Act 1916 was a UK law that first introduced daylight saving time, advancing clocks during the summer months to conserve energy and extend evening daylight.
-
A.
British Summer Time Act 1972
The British Summer Time Act 1972 is UK legislation that standardized the annual observance of daylight saving time by defining the periods during which clocks are advanced by one hour.
-
B.
Glass–Owen Act
The Glass–Owen Act is the landmark 1913 U.S. law that created the Federal Reserve System as the nation’s central bank to stabilize the financial system and manage monetary policy.
-
C.
McMahon Act
The McMahon Act is a landmark 1946 U.S. law that established civilian control over nuclear energy and restricted the sharing of atomic information, laying the foundation for American nuclear policy during the early Cold War.
-
D.
His Majesty's Declaration of Abdication Act 1936
His Majesty's Declaration of Abdication Act 1936 is the UK statute by which King Edward VIII's abdication was formally recognized, enabling his brother George VI to ascend the throne.
-
E.
August 1917 Montagu Declaration
The August 1917 Montagu Declaration was a British policy statement promising the gradual development of self-governing institutions in India and marking a key step toward constitutional reform under colonial rule.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
Act of Parliament of the United Kingdom
ⓘ
United Kingdom legislation ⓘ time-related legislation ⓘ |
| appliesTo | legal time in the United Kingdom ⓘ |
| appliesToJurisdiction | United Kingdom ⓘ |
| country | United Kingdom ⓘ |
| effect | advanced clocks during the summer months ⓘ |
| field |
daylight saving time
ⓘ
energy conservation ⓘ timekeeping ⓘ |
| hasEffectOn | standard time during summer in the United Kingdom ⓘ |
| hasPart | provisions for advancing legal time during summer ⓘ |
| influencedBy | proposals for daylight saving time by William Willett ⓘ |
| introducedConcept | daylight saving time in the United Kingdom ⓘ |
| legalStatus | repealed ⓘ |
| legislativeBody |
British Parliament
ⓘ
surface form:
Parliament of the United Kingdom
|
| purpose |
to conserve energy during wartime
ⓘ
to extend evening daylight in summer months ⓘ to introduce daylight saving time in the United Kingdom ⓘ |
| reasonForEnactment | First World War energy-saving measures ⓘ |
| replacedBy | subsequent UK summer time legislation ⓘ |
| shortDescription | UK law that first introduced daylight saving time ⓘ |
| startTime | 1916 ⓘ |
| topic |
clock changes
ⓘ
summer time in the United Kingdom ⓘ |
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: Summer Time Act 1916 Description of subject: The Summer Time Act 1916 was a UK law that first introduced daylight saving time, advancing clocks during the summer months to conserve energy and extend evening daylight.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Summer Time Act 1925