Summer Solstice 2024 Longest Day. 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. One picture taken every day of the year starting september 2023 through to september 2024 provides a pretty fascinating perspective of the twilight zone transit due.
In 2024, summer solstice in the northern hemisphere will occur on thursday, june 20 around 4:50 p.m. Here’s everything you need to know about summer solstice 2024.