Question

a) If we did not have the Indian Standard Time, what would be the approximate time
difference between Ahmedabad in Gujarat and Itanagar in Arunachal Pradesh and why?​

Answer 1

Answer:

The sun rises two hours earlier in Arunachal Pradesh as compared to Gujarat. This causes a time lag of two hours from Gujarat to Arunachal Pradesh to avoid confusion and to have a standard time for reference, The 82.30'Eastern Longitude has been taken as the standard time for the whole country.