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Daylight saving time

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Daylight Saving Time 101 | National Geographic

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Daylight Saving Time 101 | National Geographic

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Daylight Saving Time - How Is This Still A Thing?: Last Week Tonight with John Oliver (HBO)

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Daylight Saving - Movie Trailer

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Why Do We Have Daylight Saving Time? | COLOSSAL QUESTIONS

Daylight saving time (DST), also daylight savings time or daylight time and summer time, is the practice of advancing clocks during warmer months so that darkness falls later each day according to the clock. The typical implementation of DST is to set clocks forward by one hour in the spring and set clocks back by one hour in autumn to return to standard time. In other words, there is one 23-hour day in late winter or early spring and one 25-hour day in the autumn.
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