Summer 2024 Date And Time. — thursday, june 20 is the official first day of northern astronomical summer for 2024 — summer solstice — which is the longest day of the year for this half of the. Edt on june 20, according to timeanddate.com.
This year the summer will start on thursday june 20, 2024 (day of the summer solstice) and will end on sunday september 22, 2024 with the autumnal equinox. The sun will rise at 4.43am.