Daylight saving time | daylight saving time
SeasonaladjustmentofclocksDaylightsavingtimeregions: Formerlyuseddaylightsaving NeveruseddaylightsavingDaylightsavingtime(DST),alsoreferredtoasdaylightsavingstimeorsimplydaylighttime(UnitedStates,Canada,andAustralia),andsummertime(UnitedKingdom,EuropeanUnion,andothers),isthepracticeofadvancingclocks(typicallybyonehour)duringwarmermonthssothatdarknessfallsatalaterclocktime.ThetypicalimplementationofDSTistosetclocksforwardbyonehourinthespring("springforward"),andtosetclocksbackbyonehourinthe...
Seasonal adjustment of clocks
Daylight saving time regions:Formerly used daylight saving
Never used daylight saving
Daylight saving time (DST), also referred to as daylight savings time or simply daylight time (United States, Canada, and Australia), and summer time (United Kingdom, European Union, and others), is the practice of advancing clocks (typically by one hour) during warmer months so that darkness falls at a later clock time. The typical implementation of DST is to set clocks forward by one hour in the spring ("spring forward"), and to set clocks back by one hour in the fall ("fall back") to return to standard time. As a result, there is one 23-hour day in early spring and one 25-hour day in the middle of autumn.
The idea of aligning waking hours to daylight hours to conserve candles was first proposed in 1784 by U.S. polymath Benjamin Franklin. In a satirical letter to the editor of The Journal of Paris, Franklin suggested that waking...