Autumnal Equinox Day 2024 Calendar. This year, autumnal equinox is occurring on the below date and timing: Although the autumnal equinox is observed, maybe even celebrated, all day on sept.

In 2024, the autumnal equinox will take place on september 22,at 08:44 a.m. The word equinox comes from the latin words aequus, meaning “equal,” and nox, meaning “night.”.