Solstice 2024 Summer History. The northern summer solstice happens when earth’s tilt toward the sun is at a maximum and the sun is directly over the tropic of. Here's everything you need to know about the northern hemisphere's longest day of the year.
In north america, the first day of summer is marked by the summer solstice, which occurs this year on thursday, june 20, 2024 at exactly 3:50 pm edt. 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.