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Daylight saving time

Seasonal change of clock settingsDaylight saving time regions: Northern Hemisphere summer Southern Hemisphere summer Formerly used daylight saving Never used daylight savingDaylight saving time (DST), also referred to as daylight savings time, daylight time (United States and Canada), or summer time (United Kingdom, European Union, and others), is the practice of advancing clocks to (in theory) make better use of the longer daylight available during summer by having darkness fall at a later clock time.

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