First Day Of Summer 2024 Calendar Date Range. 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. Fall begins with the autumnal equinox, monday, september 22, 2025, 2:19 p.m.
In india, the summer solstice 2024 will happen on june 21 at 8:09 pm ist. This year, the first day of summer, also known as the summer solstice, is thursday, june 20.