Spring officially begins at 10:46 a.m. ET on Friday, March 20, 2026, with the arrival of the vernal equinox (spring equinox).

Friday brought us what we call “the first day of spring.” But announcing spring is an arbitrary declaration, as we saw by ...

It's almost time to get your coats out, pour yourself a large pumpkin spice latte, and start picking your conkers. That's because autumn officially begins tonight! The autumn equinox takes place at 19 ...

A red leaf spirals to the forest floor. Frost lingers on shaded green grass after sunrise. So it begins. Small changes soon add up to a brand new season, one that starts today Sept. 22 at 3:44 p.m.

Friday, March 20th, is the vernal equinox, the first day of Astronomical Spring. The vernal equinox doesn’t just mean the beginning of warmer days, but also longer days.