International Date Line — An Etymological Dictionary of Astronomy and Astrophysics

International Date Line

خط ِ جهانی ِ گاهداد

xatt-e jahâni-ye gâhdâd

Fr.: ligne internationale de changement de date

An imaginary line following approximately the 180th meridian
which, by international agreement in 1884, marks the beginning or or end of a day. The regions to the east of which are counted as being one day earlier in their calendar dates than the regions to the west.

See also: → international; → date; → line.

An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک