OCR Text |
Show Scnewliers in ths V:r!d; Hew Long Does A Day Lrrt? A particular day begins at the International Date Line at midnight mid-night (7:03 a.m. EST). The date line is in the we.-'.eni Pacific Ocean and follows generally the meridian of ISO degrees longitude. From the line, a certain day, e.g.. Monday, works its way westwards and, after 24 hours, it has gone all the way around the Earth. Then Tuesday starts, and follows the same procedure, replacing Monday Mon-day as it advances. Thus it takes an additional 21 hours before Monday Mon-day is gone, so it has lasted a total of 43 hours. However, sev-j sev-j eral places on the western side of j the date line observe time which is earlier than that generally ob- served in that region. Wrangel Island, a Russian possession north of the eastern tip of Siberia, is an hour earlier, so the new day be-gins be-gins there at G: 00 a.m., EST, and a single day is in existence someplace some-place on the Earth for a total of 19 hours. |