Geography
State with an example how time lost or gained is computed with reference to the International Date Line.
Latitudes & Longitudes
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Answer
The International Date Line is the 180° line. When crossing this date line from the west to east a day is deducted or the time is fixed backward by one day. When crossing the International Date Line, from east to west, a day is added.
For example, if it is 8 pm Monday 25th December at Greenwich, it will be 8 am Tuesday, 26th December on crossing the 180° line from the east as time will be 12 hours ahead. But if one were to travel from west, it will be 12 hours behind or 8 am Monday, 25th December.
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Related Questions
State the meaning of the International Date Line.
State with one practical example how is time of a place found with the help of longitudes.
Draw a well labelled diagram to show that places on the same longitude have the same time.
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(i) The International Date Line deviates and goes zig-zag near some islands in the Pacific Ocean.
(ii) The Greenwich time is called the Greenwich Mean Time.
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