Mapping global time zones
Chapter 1
The birth of global time
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Chapter 2
The zigzagging International Date Line
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Chapter 3
Extreme time zone anomalies
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Chapter 4
Living on the edge of time
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YOUR GOAL
Master of Mapping global time zones
Ch 4 · Living on the edge of time
Fun Fact
Diomede Islands: Big Diomede (Russia) and Little Diomede (USA) are only 2.4 miles apart, but have a 21-hour time difference.
Glossary
dateline (noun)
An imaginary line on the Earth's surface, running between the poles, where the calendar date changes. In 2011, Samoa skipped December 30 entirely to shift its position to the west of this boundary.
An imaginary line on the Earth's surface, running between the poles, where the calendar date changes. In 2011, Samoa skipped December 30 entirely to shift its position to the west of this boundary.
Quiz
What is the approximate speed at which time zones move across the Earth's equator?
Quiz
Which US state does not observe Daylight Saving Time, except for the Navajo Nation?
Quiz
Which scientist proposed shifting clocks in 1895 because he wanted more evening daylight to collect bugs?
Quiz
Which nation first adopted Daylight Saving Time nationally in 1916 to conserve coal during World War I?