British Summer Time

E8401

British Summer Time is the daylight saving time observed in the United Kingdom, during which clocks are set one hour ahead of Greenwich Mean Time to extend evening daylight in the summer months.

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Observed surface forms (2)


Statements (49)

Predicate Object
instanceOf daylight saving time
time standard
alsoKnownAs summer time in the United Kingdom
appliesDuringMonths late March to late October
appliesDuringSeason summer
basedOnTimeZone Greenwich Mean Time
category Daylight saving time by country
Time in the United Kingdom
clockChange clocks set back 1 hour at end
clocks set forward 1 hour at start
coordinatedWith European Union summer time rules (historically and currently aligned)
country United Kingdom
effectOnLocalTime shifts civil time one hour earlier relative to solar time
endRule last Sunday in October
endTimeOfChange 02:00 BST
followedByTimeZone Greenwich Mean Time
followsTimeZone Greenwich Mean Time
governedBy Summer Time Act 1916
Summer Time Act 1916
surface form: Summer Time Act 1925

British Summer Time Act 1972
surface form: Summer Time Act 1972

subsequent statutory instruments of the UK Parliament
introducedBy UK government
surface form: United Kingdom government
introducedInYear 1916
legalTimeOf United Kingdom
namedAfter British Summer Time Act 1972
observedBy Crown dependencies
United Kingdom
offsetFromGMT +1 hour
offsetFromGreenwichMeanTime +1 hour
purpose extend evening daylight
reduce energy consumption
relatedConcept Coordinated Universal Time
Greenwich Mean Time
daylight saving time in Europe
shortName BST
startRule last Sunday in March
startTimeOfChange 01:00 GMT
timeNotation 12-hour clock
24-hour clock
timeZoneAbbreviation BST
typicalEndHourLocal 01:00 UTC
typicalStartHourLocal 01:00 UTC
usedInRegion Channel Islands (crown dependencies)
surface form: Channel Islands

England
Isle of Man (crown dependency)
surface form: Isle of Man

Northern Ireland
Scotland
Wales
UTCoffset UTC+1

Referenced by (269)

Full triples — surface form annotated when it differs from this entity's canonical label.

Derbyshire timeZone British Summer Time
Douglas timeZone British Summer Time
East of England timeZone British Summer Time
Elizabeth Tower timeZone British Summer Time
Elm timeZone British Summer Time
England timeZone British Summer Time
Glasgow City timeZone British Summer Time
Gloucester timeZone British Summer Time
Gloucestershire timeZone British Summer Time
Great Britain timeZone British Summer Time
Greater London timeZone British Summer Time
HMNB Clyde timeZone British Summer Time
Hart district timeZone British Summer Time
subject surface form: Hart District
Hillsborough, County Down timeZone British Summer Time
Inner London timeZone British Summer Time
Kelty timeZone British Summer Time
Keston timeZone British Summer Time
Lambeth timeZone British Summer Time
Leeds timeZone British Summer Time
Leven timeZone British Summer Time
London, England timeZone British Summer Time
subject surface form: London
Luton timeZone British Summer Time
Manchester, United Kingdom timeZone British Summer Time
subject surface form: Manchester
Merseyside timeZone British Summer Time
Midlands timeZone British Summer Time
Newcastle upon Tyne timeZone British Summer Time
North East England timeZone British Summer Time
North Yorkshire timeZone British Summer Time
Northern England timeZone British Summer Time
Northern Ireland timeZone British Summer Time
Oldham borough timeZone British Summer Time
Oxfordshire timeZone British Summer Time
Perth timeZone British Summer Time
subject surface form: Peterborough (unitary authority)
Plymouth timeZone British Summer Time
Port Talbot timeZone British Summer Time
Richmond timeZone British Summer Time
Rossendale borough timeZone British Summer Time
Royal Borough of Greenwich timeZone British Summer Time
Sidcup timeZone British Summer Time
Somerset timeZone British Summer Time
South East England timeZone British Summer Time
South Gloucestershire timeZone British Summer Time
South Yorkshire timeZone British Summer Time
Southwark timeZone British Summer Time
southwest England timeZone British Summer Time
subject surface form: Southwest England
Staffordshire timeZone British Summer Time
Test Valley district timeZone British Summer Time
Torfaen timeZone British Summer Time