date line

• Ligne dans une lettre, un document ou un courriel indiquant la date et souvent le lieu de rédaction ; désigne aussi la ligne de changement de date, ligne imaginaire à la surface de la Terre marquant la frontière entre les jours calendaires.

A line in a letter, document, or email indicating the date and often the place where it was written; also refers to the International Date Line, an imaginary line on the Earth's surface that defines the boundary between calendar days.

1. International Date LineB2formal

   An imaginary line on the Earth's surface that runs from the North Pole to the South Pole, where the date changes by one day when crossed.

   ligne de changement de date

   • When crossing the date line from east to west, you lose a day.
   • The date line is not a straight line; it zigzags to avoid land.
   • Travelers must adjust their calendars when crossing the date line.

2. Line in a letter or documentB1formal

   A line in a letter, document, or publication that indicates the date.

   ligne de date

   • Please include the date line at the top of your letter.
   • The date line on the contract shows it was signed yesterday.
   • The newspaper's date line indicates the issue's publication date.