Maharashtra State BoardSSC (English Medium) 9th Standard
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Write in Brief: What Considerations Have Been Made While Deciding the Idl? - Geography and Economics

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Answer in Brief

Write in brief:
 What considerations have been made while deciding the IDL?

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Solution

The crossing of the 180-degree prime meridian can result in the change of time zone. Thus some precautions have to be taken to avoid the confusions in the time zones. Thus the date and time may have to be changed to incorporate this. This has to be made by considering the Greenwich 180 degree prime meridian. Two precautions have to be considered while doing this-

• The direction of travel- The sun travels from east to west and the earth rotates from west to east. Thus the countries in the west, 12.00 at midnight is the end of the day and the countries of the east, it is the start of the day. This has to be considered.

• Current day and date- When we travelling across the meridian, the day and the date changes. While travelling from east to west, one day has to add to the day of commencing the journey. But while travelling from west to east, the same day is considered upon arrival.

Concept: International Date Line
  Is there an error in this question or solution?
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APPEARS IN

Balbharati Social Science Geography 9th Standard Maharashtra State Board
Chapter 7 International Date Line
Exercise | Q 4.1 | Page 62
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