2025 Solstice Dates. It is the longest day of the year that marks the arrival of the. 21, 2025, in the northern hemisphere until thursday, march 20, 2025, when the vernal equinox will mark the beginning of spring.
According to the old farmer’s almanac , the solstice is. In 2025, the summer solstice will occur at 4:50 p.m.
