First Day Of Summer 2024 Datev. Fall begins with the autumnal equinox, sunday, september 22, 2024, 8:44 a.m. If you’re asking “when is the first day of summer?” note that the summer solstice marks the first day of summer for northern hemisphere dwellers (meaning they fall on the same day).
Here is all you need to. Summer begins with the summer solstice, thursday, june 20, 2024, 4:51 p.m.