Why is their a time variation of two hours between the eastern most and western most part of country

Why is their a time variation of two hours between the eastern most an

1.	Why is their a time variation of two hours between the eastern most and western most part of country
Answer» \xa0Arunachal Pradesh is the easternmost state and Gujarat is the westernmost state. Naturally, they experience such variation in the local time because of the longitudinal distance of 30° longitudes. This longitudinal distance of 30° longitudes makes a difference of 2 hours between the Arunachal Pradesh and the Gujarat. (1 degree = 4 minutes,30 degree = 4\xa0{tex}\\times{/tex} 30 = 120 minutes i.e\xa02 hours).Hence, when it is 6 a.m. in Arunachal Pradesh, the local time at Gujarat is supposed to be behind by 2 hours as compared to the Arunachal Pradesh,it is 4 a.m. Therefore, it is correct to say that when the sun has already risen in the Arunachal Pradesh, it is still night in the Gujarat.