Question

while the sun has already risen in arunachal pradesh, it is still dark in Gujarat​

Answer 1

the latitudal Changes causes this time variation

Answer 2

Answer:

1) The earth rotates from west to east and so, the sun rises earlier in Arunachal Pradesh than in Gujarat.

2) The sun rises from the east and moves toward the west. Arunachal Pradesh is to the east of Gujarat.

3) There is 2 hour difference between the meridians of Arunachal and Gujarat. This causes a time lag of 2 hours. So, it is still night in Gujarat when day in Arunachal.