Question

The sun rise two hours earlier in arunachal pradesh as compared to gujarat in the weat but the watches show the same time

Answer 1

there is a longitudnal gap between arunachal pradesh and gujarat which is about 30°. Because of which there is a time lag of about 2 hrs between the states. As Arunacbal pradesh is in the east therefore the sun rises early their compared to gujarat. The IST (Indian Standard Time) is taken from the time of Standard Meridian of India and hence, the watches show the same time in both the states

Answer 2

this is done to avoid any comfy In trade and services in fact the Indian government has set a standard meridian at eighty two thirty east which averages the extent of our landmass hence the entire country follows the same time