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結果 : why do we have a concept of time zone
3:12

Geography Lesson: Time Zones Explained | Twig

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

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Earth Science - Understanding Time Zones

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

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Time Zones for Kids | Learn about the time zones of the world.

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Why Do We Have Time Zones?

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Understanding Time Zones

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The Origins of Time Zones Explained: Synchronizing the World

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Is Time an Illusion? - The Science of Time Explained

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Time zones for Kids | Educational Video for Children | Learn about Time Zones

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Who decides how long a second is? - John Kitching

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The Problem with Time & Timezones - Computerphile

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Daylight Saving Time Explained

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Why do we change the clocks? - BBC News

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How time zones are subtly messing with you

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Why Britain is the Center of the World

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Time Zones and the Coordinated Universal Time

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Do We Really Need Time Zones?

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Why do different places have different times?

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Class 6, Chapter 2-Concept of Time Zones I Latitudes & Longitudes (Part 3) I Geography

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