Summer And Winter Solstice 2025 Calendar. Thursday, june 20 is the official first day of northern astronomical summer for 2025 — summer solstice — which is the longest day of the year for this half of the. What is the summer solstice?

Summer begins with the summer solstice, thursday, june 20, 2025, 4:51 p.m. This page provides date and local time for summer solstice in the year 2025 for boydton, virginia, united states.