2025 Summer Solstice

This year, the summer solstice in the Northern Hemisphere occurs at 02:42 UTC on Saturday, June 21, 2025.

That means it’s at 10:42 p.m. EDT on Friday, June 20 and at 3:41 a.m. BST on Saturday, June 21.

Crowds celebrating the summer solstice and the dawn of the longest day of the year at Stonehenge in Wiltshire, England. (Image credit: paul mansfield photography via Getty Images)

Each year on the summer solstice, revelers at Stonehenge in England stay up all night to celebrate the dawn of the longest day of the year in the Northern Hemisphere, with many images streamed live.

But this year, there’s a twist: The summer solstice there will occur on a different day than the solstice in North America, due to time zone differences.

So, when is the summer solstice in 2025, and what’s the science behind it?

Source: livescience.com for the complete article