Advertisement

Advertisement

International Date Line

[ in-ter-nash-uh-nl deyt lahyn ]

noun

  1. a theoretical line following, with occasional deviations, the antimeridian, the regions to the east of which are counted as being one day earlier in their calendar dates than the regions to the west.


International Date Line

noun

  1. the line approximately following the 180° meridian from Greenwich on the east side of which the date is one day earlier than on the west Also calleddate 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


International Date Line

/ ĭn′tər-năshə-nəl /

  1. An imaginary line on the Earth's surface that is internationally agreed upon as the place where each new calendar day begins. The line extends from the North to the South Pole through the Pacific Ocean, roughly along the 180th meridian. The calendar day to the east of the line is one day earlier than it is to the west of the line. The International Date Line was established at the International Meridian Conference in 1884 in order to standardize time, especially for the purpose of travel.


Discover More

Word History and Origins

Origin of International Date Line1

First recorded in 1875–80

Advertisement

Advertisement

Advertisement

Advertisement


International Criminal Police OrganizationInternational Development Association