Srinagar, May 24 -- The phenomenon of day and night is caused by the rotation of the Earth. A full day starts at midnight (12 a.m.) and ends at 11:59 p.m., comprising 24 hours. Interestingly, the Earth not only rotates on its axis but also revolves around the Sun, completing one revolution in 365 days and 6 hours. This is why every fourth year is a leap year, with 366 days.Due to this revolution, we experience four seasonsSpring: March 21 - June 21Summer: June 22 - September 21Autumn: September 22 - December 21Winter: December 22 - March 20Nature's beauty lies in these changing seasons. We experience rain, snow, heat, and cold, each bringing its own charm. The Kashmir Valley, situated in the extreme north, remains cool for most of the yea...