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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.

See Examples For:

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 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

Sara Warren, who was the on-duty rescue officer, said they took every measure to avoid any conflict, including staying on the U.S. side of the international date line.

From Seattle Times Apr. 6, 2023

The volcano is about 40 miles north of Tonga’s main island, Tongatapu, near the international date line.

From Washington Post Jan. 16, 2022

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

From "Homesick" by Jean Fritz

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