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.

Lord Lieutenant of Hampshire locatedInTimeZone British Summer Time
Lord Mayor of London locatedInTimeZone British Summer Time
Newport-on-Tay locatedInTimeZone British Summer Time
North Lanarkshire locatedInTimeZone British Summer Time
Northern Quarter locatedInTimeZone British Summer Time
Norton locatedInTimeZone British Summer Time
Outer London locatedInTimeZone British Summer Time
Penge locatedInTimeZone British Summer Time
Pentonville locatedInTimeZone British Summer Time
Prime Minister's Office locatedInTimeZone British Summer Time
subject surface form: Prime Minister's Office (United Kingdom)
Queen's Square, Belfast locatedInTimeZone British Summer Time
Sale locatedInTimeZone British Summer Time
Shetland Islands Council locatedInTimeZone British Summer Time
southern England locatedInTimeZone British Summer Time
subject surface form: Southern England
Stevenage locatedInTimeZone British Summer Time
Sutton locatedInTimeZone British Summer Time
Swansea locatedInTimeZone British Summer Time
Trellech United locatedInTimeZone British Summer Time
UK DMO locatedInTimeZone British Summer Time
subject surface form: UK Debt Management Office
West Gorton locatedInTimeZone British Summer Time
West London locatedInTimeZone British Summer Time
Wolverhampton locatedInTimeZone British Summer Time
Woolwich locatedInTimeZone British Summer Time
York locatedInTimeZone British Summer Time
Bagshot observes British Summer Time
Broadstairs, Kent, England observes British Summer Time
subject surface form: Broadstairs
Caerphilly (part) observes British Summer Time
Clackmannanshire observes British Summer Time
Clayton observes British Summer Time
Cowdenbeath observes British Summer Time
Eton, Berkshire observes British Summer Time
Forfar observes British Summer Time
Gaywood observes British Summer Time
Glasgow observes British Summer Time
Grantham observes British Summer Time
Halifax observes British Summer Time
Hethel, Norfolk, United Kingdom observes British Summer Time
Kew observes British Summer Time
Killingworth observes British Summer Time
Ladbroke Grove, London, England observes British Summer Time
subject surface form: Ladbroke Grove
Marshland St James observes British Summer Time
Porthmadog observes British Summer Time
Ramsgate observes British Summer Time
Roundthorn observes British Summer Time
Saint Helier observes British Summer Time
South Wales observes British Summer Time