춘분, or the Spring Equinox, occurs around March 20th or 21st each year. It marks the moment when day and night are approximately equal in length. This event signifies the arrival of spring in the Northern Hemisphere, as the sun crosses the celestial equator moving northward. In many cultures, 춘분 is celebrated with various traditions and festivals. For example, in Korea, people observe this day by honoring ancestors and preparing seasonal foods. The equinox is also a time for farmers to begin planting crops, as the warmer weather promotes growth and renewal in nature.