Chunfen (春分) reflects the changing of seasons. It falls on March 20 this year. On this day, so as on Qiufen in autumn, the sun shines directly on the equator, making the days and nights equal in length everywhere in the world. (More) Chunfen (春分) reflects the changing of seasons. It falls on March 20 this year. On this day, so as on Qiufen in autumn, the sun shines directly on the equator, making the days and nights equal in length everywhere in the world. (More)