Written by On Sunday, December 21, 2025, at 10:03 AM EST, the Northern Hemisphere will experience the winter solstice. That’s the instant when the Sun reaches its southernmost point in the sky, marking the official beginning of astronomical winter and when daylight hours are at their minimum before they start lengthening again. Also known as the shortest day and longest night of the year. This astronomical event has captivated humanity for millennia, inspiring celebrations, rituals, and traditions that continue to resonate in our modern world.
What Is the Winter Solstice?
The winter solstice occurs when the northern half of the Earth is tilted its farthest away from the sun, causing the sun to reach its lowest point in the sky. While many think of it as an entire day, the solstice actually lasts just a moment. A precise astronomical alignment that marks the official beginning of winter.
The word “solstice” comes from the Latin words meaning “sun” and “still,” reflecting how the sun appears to pause in its southward journey before reversing direction. After December 21st, the days gradually begin to lengthen again, offering the promise of returning light and the eventual arrival of spring.