Definition of Date Line in English:

Date Line

Line breaks: Date Line
(also International Date Line)
  • An imaginary North-South line through the Pacific Ocean, adopted in 1884, to the east of which the date is a day earlier than it is to the west. It lies chiefly along the meridian furthest from Greenwich (i.e. longitude 180°), with diversions to pass around some island groups.

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Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
(in science fiction) navigation in outer space