Question

You have gone from Delhi to Arunachal Pradesh on a study tour with your school during the winter vacation. As you woke up in the morning at 6 o'clock, you noticed the sun has risen whereas at Delhi sun rise is around 7 .30 a.m. Similarly around 4.30 it was sunset while sunset is around 6 p.m. in Delhi. What do you think could be the reason for the sun rising and setting earlier than Delhi? Which feature of the earth can you relate to from this?

Answer 1

The reason for the sunrise and sunset times being earlier in Arunachal Pradesh than in Delhi is due to Arunachal Pradesh's location to the east of Delhi. The Earth rotates from west to east, meaning that places further to the east experience sunrise and sunset earlier than those to the west.

This time difference is related to the Earth's rotation and longitude. Since Arunachal Pradesh is located towards the east of Delhi, it reaches the Sun’s rays sooner, causing the sunrise and sunset to happen earlier compared to Delhi.

This is a result of the Earth's rotation and its division into time zones, where each 15° of longitude corresponds to a one-hour difference in local time. The Earth’s rotation causes the Sun to rise earlier in the east and set later in the west.