Earth and the Environment

What is the international date line?

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... international date line imaginary line on the earth's surface, generally following the 180° meridian of longitude , where, by international agreement, travelers change dates. Traveling eastward across the line, one subtracts one calendar day; traveling westward, one adds a day.

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Similar questions: When traveling east across the date line, how does the date change? How does the date changes when traveling west across the date line? What directions are important in considering the date line? What is the imaginary line on the earth's surface that sets the date? [ Hide these questions ]

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