date line

• سطر في رسالة أو مستند أو بريد إلكتروني يبيّن التاريخ وغالبًا مكان الكتابة؛ ويشير أيضًا إلى خط التاريخ الدولي، وهو خط وهمي على سطح الأرض يحدد الحدود بين الأيام التقويمية.

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.

   خط التاريخ الدولي

   • 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.

   سطر التاريخ

   • 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.