結果 : what is daylight saving time (dst)
6:30

Daylight Saving Time Explained

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Daylight Saving Time 101 | National Geographic

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Daylight Saving Time 101 | National Geographic

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What is Daylight Saving Time (DST)?

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6:13

What is Daylight Saving Time? | CNBC Explains

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Neil deGrasse Tyson Explains Daylight Saving Time

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What Neil Thinks About Daylight Saving Time | StarTalk

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1:31

How daylight saving time affects our bodies, minds -- and world | Sleeping with Science

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2:30

Daylight Saving Time – explained easily

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Fixing Daylight Saving Time Is THIS Easy

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Why Do We Have Daylight Saving Time? | COLOSSAL QUESTIONS

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Daylight Saving Time Explained for Kids: The Story Behind Clock Changing! Kidzoneer

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What is Daylight Saving Time (DST)?- IN NEWS I Drishti IAS

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The case for getting rid of daylight-saving time

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Let Me Explain: Permanent Daylight Saving vs. Standard Time | NBCLA

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

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Why We Have Daylight Saving Time

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Daylight savings explained: Why do we adjust our clocks

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Doctors and Daylight Savings Time

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Why Experts Say Permanent Daylight Saving Time is Unhealthy

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