結果 : why time zone change in usa
6:30

Daylight Saving Time Explained

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Geography Lesson: Time Zones Explained | Twig

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Daylight Saving Time 101 | National Geographic

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When Did Time Zones Become a Thing? (Short Animated Documentary)

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Why do we change the clocks? - BBC News

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6:13

What is Daylight Saving Time? | CNBC Explains

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The case for getting rid of daylight-saving time

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Real Reason Why We Use Daylight Savings Time

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Why do we have different time zones? | #aumsum #kids #science #education #children

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13:01

Fixing Daylight Saving Time Is THIS Easy

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3:35

How did trains standardize time in the United States? - William Heuisler

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6:02

These Are the World's Strangest Time Zones

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51:56

The rise of the ultra-right in the US | DW Documentary

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4:17

Understanding Time Zones

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6:54

Daylight saving time change in USA & Canada explained

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2:43

USA Time Zone Change - TV5

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25:27

Why Are the LA Wildfires So Extreme?

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0:59

Day Light saving Time change in USA and Canada on Nov 1. Set your clocks.

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10:13

The Problem with Time & Timezones - Computerphile

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2:39

Efforts to make daylight saving time permanent renewed in Congress

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