The March Equinox, also known as the Spring Equinox in the Northern Hemisphere, occurs around March 20 or 21 each year. During this time, day and night are approximately equal in length, as the sun crosses the celestial equator. This event marks the beginning of spring in many cultures and is celebrated in various ways around the world. The March Equinox is significant for its impact on seasonal changes. As the Earth orbits the sun, the tilt of its axis causes different regions to experience varying amounts of sunlight. This shift leads to warmer temperatures and the blooming of flowers, symbolizing renewal and growth in nature.