Last Updated：2025/11/20

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An imaginary line on the Earth's surface at 180° longitude, mostly through the Pacific Ocean, to the east of which the calendar date is one day earlier than to the west.

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International Date Line

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Source Word

International Date Line

Proper noun

An imaginary line on the Earth's surface at 180° longitude, mostly through the Pacific Ocean, to the east of which the calendar date is one day earlier than to the west.

Japanese Meaning

国際日付変更線：地球上にある想像上の線で、経度180度付近を走り、主に太平洋を通る。この線の東側は西側よりも1日早い日付となる。

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Google Translation / DeepL Translation

飛行機が国際日付変更線（東経180度付近）を越えたとき、乗客たちはカレンダーが一日進んでいることに驚いた。

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Sense（1）

An imaginary line on the Earth's surface at 180° longitude, mostly through the Pacific Ocean, to the east of which the calendar date is one day earlier than to the west.

After 119 years to the east of the International Date Line, they are shifting to the west so they can be on the same calendar day as their main economic partners, Australia and New Zealand.

Google Translation / DeepL Translation

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International Date Line

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International Date Line

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