Summer Solstice 2024 Time Est. — when do the four seasons start in 2024—for spring, summer, fall, and winter? — this year's summer solstice is thursday, june 20, 2024 at 1:50 p.m.
In the southern hemisphere, it will occur on december 21 at 09:20 gmt (december 21, 04:20 a.m. It’s the longest day of the year and.