dateline

/ˈdeɪtˌlaɪn/
noun
  1. A line at the beginning of a news article that shows the date and location where the story was written or reported.
    • Journalists always include a dateline to show where the news originated.
    • I checked the dateline to see if the report was from yesterday or last week.
    • The dateline on the article read 'London, March 15'.
  2. An imaginary line on the Earth's surface (the International Date Line) where the date changes by one day when crossed.
    • Traveling east across the dateline means you lose a day.
    • The pilot announced that we would cross the International Dateline during the flight.
    • When we crossed the dateline, we suddenly jumped from Tuesday to Wednesday.
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