Answer :

Earth is divided into 360⁰ of longitude lines. They are imaginary lines that run from north to south of the globe. And the time for one rotation of Earth is 24 hours. We find it as day and night completed in 24 hours.

If 360⁰ = 24 hours,

Then, 1 hour = = 15⁰, each hour is further divided into minutes, and minutes into seconds.

So, 1 hour = 60 minutes,

So, earth moves 15 degrees in 60 minutes.

Then, in moving 1⁰ the earth takes

So for every degree of longitude, the time difference is four minutes.

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