Shortest Day Of The Year 2025 Usa. What is the meaning of flag day? The 2025 summer solstice is celebrated for being the longest day of the year, but it also means days will only get shorter from here.

The shortest day can occur on december 20, 21, 22, or 23. The shortest day of the year, also known as the winter solstice, occurs on december 21st or 22nd in the northern hemisphere.