Summer Solstice 2024 Meaning In English. 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. In 2024, the summer solstice will occur at 4:50 p.m.

Here’s everything you need to know about the northern hemisphere’s longest day of the year. Summer solstice or june solstice 2024 occurs on friday june 21 at 09:01 a.m.