Comprehending time around the world depends on an understanding of both the geographic grid of latitude and longitude, and of Earth–Sun relations. The International Date Line (IDL), is an imaginary line that runs roughly along the 180° line of longitude, in the middle of the Pacific Ocean. Similar words: international, internationally, private international law, international relations, internationalize, internationalism, international trade, public international law. Let us know if you have suggestions to improve this article (requires login). Meaning: n. an imaginary line on the surface of the earth following (approximately) the 180th meridian. The article states 'The nautical date line, which is not the same as the International Date Line, is a de jure construction determined by international agreement. Thesaurus: synonyms and related words The International Date Line (IDL) is an imaginary line on Earth's surface defining the boundary between one day and the next. Classified under: Nouns denoting spatial position. An imaginary line through the Pacific Ocean roughly corresponding to 180° longitude, to the east of which, by international agreement, the calendar date is one day earlier than to the west. Dateline definition is - a line in a written document or a printed publication giving the date and place of composition or issue. International Date Line definition: get a summary, overview, and a better understanding of this term in the Dauntless Jaunter Travel Glossary. The date on the west side of the line is one day earlier than the date on the east side of the line. Corrections? Sense 2. The International Date Line was established at the International Meridian Conference in 1884 in order to standardize time, especially for the purpose of travel. All Rights Reserved. dateline, date line, International Date Line (noun) an imaginary line on the surface of the earth following (approximately) the 180th meridian. The International Date Line exists for a specific reason. The date line runs from the North Pole to the South Pole through the Pacific Ocean. It marks the time zone border where the date is actually changed by a whole day. Articles from Britannica Encyclopedias for elementary and high school students. The line extends from the North to the South Pole through the Pacific Ocean, roughly along the 180th meridian. International Date Line, also called Date Line, imaginary line extending between the North Pole and the South Pole and arbitrarily demarcating each calendar day from the next. The International Date Line (IDL) on the map. /ɪn.t̬ɚˌnæʃ.ən.əl ˈdeɪt laɪn/ The International Date Line is an imaginary line between the most northern and southern points on earth that goes through the Pacific Ocean. international date line in American English [often I- D- L-] an imaginary line drawn north and south through the Pacific Ocean, largely along the 180th meridian: at this line, by international agreement, each calendar day begins at midnight, so that when it is Sunday just west of the line, it is Saturday just east of it … Synonyms: date line; dateline; International Date Line. The International Date Line is an imaginary line on the surface of the Earth from the north to the south pole and demarcates one calendar day from the next. An imaginary line running north and south through the Pacific Ocean, largely along the 180th meridian: there is a 24-hour time difference between a point just west and one just east of the line, so that when it is Sunday just west of the line, it is Saturday just east of it. Moreover, it is parallel to the longitude, but it is not considered as one of 360 longitudes. The International Date Line is located halfway around the world from the prime meridian (0° longitude) or about 180° east (or west) of … international date line in American English [often I- D- L-] an imaginary line drawn north and south through the Pacific Ocean, largely along the 180th meridian: at this line, by international agreement, each calendar day begins at midnight, so that when it is Sunday just west of the line, it is Saturday just east of it South of the Equator, another eastward deviation allows certain island groups to have the same day as New Zealand. THE INTERNATIONAL date line (IDL) is the imaginary line on Earth slicing through the center of the PACIFIC OCEAN that separates two consecutive calendar days. Areas to the west of the date line are one calendar day ahead of areas to the east. A phrase at the beginning of a newspaper or magazine article that gives the date and place of its origin. date′line′ v. American Heritage® Dictionary of... Dateline - definition of dateline by The Free Dictionary. ə n. ə l ˈdeɪt laɪn / The International Date Line is an imaginary line between the most northern and southern points on earth that goes through the Pacific Ocean. The date line, also called the International Date Line, is a boundary from which each calendar day starts. The date on the west side of the line is one day earlier than the date on the east side of the line.