Summer Solstice 2024 Date And Time And Date Range. The summer solstice 2025 is on saturday, june 21, 2025 (in 275 days). 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 planet.

You can change the suns positions for sunrise, selected time and sunset see. The solstice this year falls on thursday june 20 2024 , which will officially be the longest day of the year.