What Is Spring Equinox 2024 Nfl. The spring equinox (as well as autumnal equinox) is the moment when neither of the earth’s hemispheres is inclined towards or away from the sun. Here’s what to know about how.
This is when the sun is exactly perpendicular to earth’s equator. The spring equinox is tuesday, march 19 and brings the first day of astronomical spring to the northern hemisphere.