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.

Similar
Date Line
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Meanings

proper noun
  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.

    2011 December 29, Rowan Callick, “What a difference a day makes in Samoa”, in The Australian

    Synonyms: Date Line

Synonyms & antonyms

proper nounAn 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.

Similar
Date Line
Also see
date line

Translations

Catalan línia internacional de canvi de data
  • línia internacional de canvi de dataline on the Earth's surface
Chinese Mandarin 國際日期變更線 /国际日期变更线
  • 國際日期變更線 /国际日期变更线 (Guójì Rìqī Biàngēng Xiàn)line on the Earth's surface
Dutch internationale datumgrens
  • internationale datumgrensline on the Earth's surface
Estonian kuupäeväraja
  • kuupäevärajaline on the Earth's surface
Finnish kansainvälinen päivämääräraja
  • kansainvälinen päivämäärärajaline on the Earth's surface
French ligne de changement de date
  • ligne de changement de dateline on the Earth's surface
German Datumsgrenze
  • Datumsgrenzeline on the Earth's surface
Hungarian nemzetközi dátumválasztó vonal
  • nemzetközi dátumválasztó vonalline on the Earth's surface
Japanese 国際日付変更線
  • 国際日付変更線 (Kokusai Hizuke Henkōsen)line on the Earth's surface
Korean 날짜 변경선
  • 날짜 변경선 (Naljja Byeon'gyeongseon)line on the Earth's surface
Malay Garisan Tarikh Antarabangsa
  • Garisan Tarikh Antarabangsaline on the Earth's surface
Norwegian Bokmål datolinje
  • datolinjeline on the Earth's surface
Polish linia zmiany daty
  • linia zmiany datyline on the Earth's surface
Russian ли́ния переме́ны да́ты
  • ли́ния переме́ны да́ты (línija peremény dáty)line on the Earth's surface
Spanish línea internacional de cambio de fecha
  • línea internacional de cambio de fechaline on the Earth's surface
Swedish datumgränsen
  • datumgränsenline on the Earth's surface
Thai เส้นแบ่งเขตวันสากล
  • เส้นแบ่งเขตวันสากล (sên-bɛ̀ng-kèet-wan-sǎa-gon)line on the Earth's surface
Turkish tarih değiştirme çizgisi
  • tarih değiştirme çizgisiline on the Earth's surface
Cite this entry
APA

International Date Line. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/International%20Date%20Line

MLA

“International Date Line.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/International%20Date%20Line. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “International Date Line,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/International%20Date%20Line.

Source: International Date Line on Wiktionary, CC BY-SA 4.0.