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date line

American  
date line British  

noun

  1. (often capitals) short for International Date Line

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

date line Scientific  
/ dāt /
  1. The International Date Line.


Etymology

Origin of date line

First recorded in 1875–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The short answer is that Mondays become Tuesdays at the international date line, a boundary that runs through the Pacific Ocean.

From New York Times • Apr. 24, 2024

The longer answer is that no international rules govern the location of the date line, and its exact coordinates depend on the shifting whims of governments.

From New York Times • Apr. 24, 2024

The position of the international date line meant hitting a ball into right field was hitting it into the next day.

From Washington Post • Apr. 30, 2022

Because of where the international date line sits, countries in Asia and the Pacific region are among the first to usher in each new year.

From Seattle Times • Dec. 30, 2021

Only when we came to the international date line did my “in-between” feeling disappear.

From "Homesick" by Jean Fritz

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