The Shortest Day Of The Year 2025. In december, the winter solstice marks the exact moment the northern hemisphere is tilted the furthest away from the sun. What is the shortest day of the year 2025, when is the longest night?

Winter solstice takes place on december 21, 2025, in the northern hemisphere and on june 21, 2025, in the southern hemisphere. Fast forward six months, and the shortest day of the year will come on december 21, 2025—the winter solstice.