Question

b. Why is the longitude and not the latitude important for calculation of time?​

Answer 1

Answer:

Latitudes are horizontal lines on earth's surface and longitudes are vertical vertical lines on earth's surface. Since earth rotates vertically not horizontally hence we use longitude to measure time and not latitude.

Explanation:

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Answer 2

Longitudes are vertical imaginary lines on globe. Middle line is called prime meridian and value is 0° . Left and right side are 180° extension of these lines so total extension is 360°Time on 0° longitude is called G.M.T. this is standard time of earth .Earth rotates from west to east so that sun arises from east and sunlight takes 4 minutes to cross one degree longitude means 360×4=1440 minutes or 24 hour .So the basis of location of a place on longitude we can calculate time zone for that place for example if we add 5:30 hour into indian standard time ( IST ) we find G.M.T. another example is that extension of India from left to right is about 30° longitude so sun arises in arunachal pradesh 2 hour early then saurashtra ( gujrat )

Explanation:

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