Daylight Saving Time

URI: https://gptkb.org/entity/Daylight_Saving_Time

GPTKB entity

AI-created image

Predicate	Object
gptkbp:instanceOf	time adjustment practice
gptkbp:abolished	gptkb:Argentina gptkb:China gptkb:India gptkb:Japan gptkb:Russia
gptkbp:alsoKnownAs	gptkb:DST summer time
gptkbp:category	gptkb:public_policy Chronology Seasonal adjustment Timekeeping
gptkbp:compatibleWith	gptkb:Hawaii gptkb:Iceland gptkb:Arizona_(except_Navajo_Nation) most of Africa most of Asia
gptkbp:controversy	energy savings debated health effects debated
gptkbp:effect	affects business hours affects sleep patterns affects technology systems affects transportation schedules shifts sunrise and sunset times
gptkbp:endDate	autumn
gptkbp:firstReleased	1916
gptkbp:impact	can disrupt circadian rhythms can increase morning energy use can reduce evening energy use
gptkbp:introducedIn	gptkb:Germany
gptkbp:involves	advancing clocks during warmer months
gptkbp:legislature	gptkb:EU_Directive_2000/84/EC gptkb:Uniform_Time_Act_(US)
gptkbp:opposedBy	some health experts
gptkbp:proposedAbolition	gptkb:European_Union_(2021_proposal) United States (Sunshine Protection Act)
gptkbp:proposedBy	gptkb:George_Vernon_Hudson
gptkbp:purpose	make better use of daylight
gptkbp:regulates	local or national governments
gptkbp:relatedTo	gptkb:time_zone gptkb:Standard_Time
gptkbp:startDate	gptkb:spring
gptkbp:supportedBy	some business groups
gptkbp:typicalChange	clocks set forward by one hour
gptkbp:usedIn	gptkb:Australia gptkb:Canada gptkb:European_Union gptkb:United_States
gptkbp:bfsParent	gptkb:Central_Daylight_Time gptkb:Iceland gptkb:UTC
gptkbp:bfsLayer	4