The sun rises two hours earlier in Arunachal Pradesh as compared to Gujarat in the west. But the clocks show the same time. How does this happen?
Answers
ANSWER:-
India, the 7th largest country in the world and it has a vast longitudinal extent. India is located between 687’E and 9725’E. The longitudinal difference between the easternmost (Arunachal Pradesh) and westernmost (Gujarat) limits is approximate 30As we know that the sun takes 4 minutes to cross 1 longitude. (One rotation completed by earth in 24 hours (1440 min). Total no. of longitudes is 360. Therefore 1440 ÷ 360= 4min)
So, to cross 30 longitudes, it will take 120 minutes or 2 hours.
To avoid confusion of time difference along the longitudes 8230’E is considered as the Standard Meridian of India. Therefore, all the places in India have the same time.
This is because of different longitude and Same IST (Indian Standard Time).
-Arunachal Pradesh and Gujarat are located at a different longitudes. But, Both Longitudes have same Time.
As, Gujarat and Arunachal Pradesh have different longitudes, So it is found that, the Sun rises earlier in Arunachal Pradesh as compared to Gujarat. We know that, The Time of each location in a specific country is same. Either it's Longitudes are different or any there is far distance between them. Therefore, Sunrises earlier in Arunachal Pradesh due to their different Longitudes.
-Gujarat lies between 68° E and 74° E longitude.
-Arunachal Pradesh is located between 91.20° E and 97.30° E longitude
-Arunachal Pradesh is located at Eastern part of India. It means that, there will be very Huge distance in time.
Reason for time difference:
1) India is located at 30° longitude. (Time will be same everywhere even there are different longitudes).
2) There is 30° longitudes between Arunachal pradesh and Gujarat.
3) 30°* 4 mins = 120 mins
4) 120 Mins is equal to 2 Hours.
Hence, There is a 2 hours time different between Gujarat and Arunachal Pradesh but watches shows same time.