Milly Suzette

Last Day Of Summer 2024 Date And Time. And the following day, 20 more people. This year, the first day of summer, also known as the summer solstice, is thursday, june 20.

Solstice—the longest day of the year in the northern hemisphere and the shortest in the southern hemisphere—will occur on thursday, june 20, at 20:50. The last day of summer is determined by the september or autumn equinox, which marks the first day of fall.