While the season you’re in depends on the hemisphere, the start and end dates are the same.
- Northern Hemisphere Spring & Southern Hemisphere Fall: March 21 – June 20
- Northern Hemisphere Summer & Southern Hemisphere Winter: June 21 – September 22
- Northern Hemisphere Fall & Southern Hemisphere Spring: September 23 – December 21
- Northern Hemisphere Winter & Southern Hemisphere Summer: December 22 – March 20