Equinox 2024 Exact Time. Edt on march 19, or 0306 gmt on march 20, according to time and date. This year, the precise moment of the march equinox occured at 11:06 p.m.

That’s because earth takes slightly longer than a calendar year — 365 days, 6 hours and 9 minutes, to be exact — to complete one full orbit around the sun. In 2024, the autumnal (fall) equinox arrives on sunday, september 22, marking the official first day of fall.