First Day of Winter是什么时候？

The First Day of Winter marks the winter solstice in the Northern Hemisphere — the shortest day and longest night of the year ❄️ It's the astronomical start of winter, when the sun reaches its lowest point in the sky and the cold season officially begins.

While the days are short and temperatures drop, the winter solstice also marks the turning point when daylight starts gradually returning 🌨️ Count down to the official arrival of winter.