Geography
State with an example how time lost or gained is computed with reference to the International Date Line.
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.
Related Questions
Draw a well labelled diagram to show that places on the same longitude have the same time.
Give a geographical reason for each of the following:
(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.
(iii) Great Circles are the shortest routes between two places.State with one practical example how is time of a place found with the help of longitudes.
State the meaning of the International Date Line.