When Is The Longest Day Of The Year 2025 Uk. The longest day of the year. It ends on 20 march 2025 with the spring equinox.
Countdown to the longest day of the year summer solstice in the northern hemisphere countdown to 20th june 2025 at 9:44pm (europe/london time) The fun continues on new year’s day with the first footin’ music trail and sprogmanay children’s activities.