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प्रश्न
How can you say that the use of ‘Local Time’ is very inconvenient nowadays in practical life?
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उत्तर
Use of Local time is very inconvenient nowadays in practical life because if we have to travel through many countries, it will be convenient to us to follow one particular standard time, according to which we can set our watches with respect to a particular country and its standard time with reference to Greenwich or Prime Meridian (0° Longitude) to bring about international uniformity. This is known as Greenwich Mean Time (GMT). The Indian Standard time is 5 hrs 30 minutes ahead of GMT.
संबंधित प्रश्न
An important programme was to be broadcast from Mumbai at 7.30 p.m. This was heard by some Indian sailors near Ivory Coast in West Africa at 20°W longitude. What was the local time there?
Calculate the time at Durban (longitude 30°E) when the time is 7.00 a.m. at New York (75°W).
Calculate the longitude of a place where the local time is 6.00 a.m. when the time is 9.00 p.m. at New Delhi on longitude 77° E.
Calculate the local time in Singapore (104°E) when it is 6.00 p.m. at Greenwich.
What is the rate of change of time per degree of longitude?
State two properties of lines of longitude.
What adjustment has to be made when ships cross the International Date Line?
OR
Explain why a day appears to be lost in sailing round the world from east to west and gained when travelling from west to east.
Why is it 5.30 p.m in India when it is 12.00 noon in London?
Fill in the blanks.
The Standard Meridian of India is ____________________.
Which place is used as a standard for time all over the world?
