First Day Of Summer Day 2024. Get those swimsuits and sunglasses ready for the first day of summer. The first official day of summer astronomically for 2024 is thursday, june 20, which is when the northern hemisphere has the longest day of the year, according.
The first day of summer arrives with the solstice this year on thursday, june 20, 2024 at 4:51 p.m. (in the southern hemisphere, it is around december 21 or 22.) this date is considered to be.
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