found: Random House Web. unabr. dict., c1997(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)
found: Amer. Herit. dict.(International Date Line: An imaginary line through the Pacific Ocean roughly corresponding to 180⁰ longitude, to the east of which, by international agreement, the calendar date is one day earlier than to the west)
found: McGraw-Hill dict. sci. tech. terms(international date line [ASTRON] A jagged arbitrary line, roughly equal to the 180⁰ meridian, where a date change occurs: if the line is crossed from east to west a day is skipped, if from west to east the same day is repeated)
found: Web. geog.(International Date Line)
notfound: Columbia gaz.
