Spring Equinox 2024 Time In Phoenix. It also lists astronomical sunrise and sunset timings on vernal equinox day. Spring equinox 2024 (beginning of astronomical spring) on the day of the spring (march) equinox, the sun crosses the celestial equator, moving along the ecliptic.

Here’s what to know about how we split up the year using the earth’s orbit. The vernal equinox marks the start of the spring season for the northern hemisphere.