Date Of Solstice 2024. Today (june 20) the summer solstice — the longest day of the year in the northern hemisphere — will begin, and it will be the earliest solstice in 228 years. Edt (2051 gmt), and the summer solstice for the southern hemisphere occurs on dec.

Summer solstice 2024 (beginning of astronomical summer) on the day of the summer (june) solstice, the solar disk, moving along the ecliptic, will fall into its northernmost point and will be. This day is also the longest of the year,.