Spring Equinox 2024 Date And Time. But why does the day mark the start of spring and why only in the northern. Eastern time on sunday, sept.

The spring equinox, which takes place this year on march 19 at 11:06 p.m. Spring equinox 20 march, summer solstice 21 june, autumn equinox 22 september, winter solstice 21 december.