Date line

Date line
Date line Date line The hypothetical line on the surface of the earth fixed by international or general agreement as a boundary on one side of which the same day shall have a different name and date in the calendar from its name and date on the other side. Also called {International Date Line}. [Webster 1913 Suppl. +PJC]

Note: Speaking generally, the date line coincides with the meridian 180[deg] from Greenwich. It deflects between north latitudes 80[deg] and 45[deg], so that all Asia lies to the west, all North America, including the Aleutian Islands, to the east of the line; and between south latitudes 12[deg] and 56[deg], so that Chatham Island and the Tonga group lie to the west of it. A vessel crossing this line to the westward sets the date forward by one day, as from Sunday to Monday. A vessel crossing the line to the eastward sets the date back by one day, as from Monday to Sunday. Hawaii has the same day name as San Francisco; Manila, the same day name as Australia, and this is one day later than the day of Hawaii. Thus when it is Monday May 1st at San Francisco it is Tuesday may 2d at Manila. [Webster 1913 Suppl.]


The Collaborative International Dictionary of English. 2000.

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Look at other dictionaries:

  • date line — INTERNATIONAL DATE LINE * * * …   Universalium

  • date line — See international date line …   Military dictionary

  • date line. — See International Date Line. [1875 80] * * * …   Universalium

  • International Date Line — Date line redirects here. For other uses, see Dateline (disambiguation). The International Date Line around 180° The International Date Line (IDL) is a generally north south imaginary line on the surface of the Earth, passing through the middle… …   Wikipedia

  • International Date Line — Date line Date line The hypothetical line on the surface of the earth fixed by international or general agreement as a boundary on one side of which the same day shall have a different name and date in the calendar from its name and date on the… …   The Collaborative International Dictionary of English

  • date line — noun see dateline 2 …   New Collegiate Dictionary

  • International Date Line — a theoretical line following approximately the 180th meridian, the regions to the east of which are counted as being one day earlier in their calendar dates than the regions to the west. Also, date line. * * * Imaginary line from the North Pole… …   Universalium

  • international date line — The line coinciding approximately with the anti meridian of Greenwich, modified to avoid certain habitable land. In crossing this line there is a date change of one day. Also called date line …   Military dictionary

  • FNN Date Line — was the last news program of the night on Fuji Television. It was broadcast with that name from October 1987 to March 1990. HistoryUntil March 1988, the program was a baseball show. After the first half of April 1988, it became a general news… …   Wikipedia

  • international date line — noun Date: circa 1909 an arbitrary line approximately along the 180th meridian designated as the place where each calendar day begins …   New Collegiate Dictionary

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