First day of winter 2023
The First day of winter 2023 will be observed on Friday, 22nd of December. On this day, the northern hemisphere will observe the shortest day and the longest night of the year. This is because on this day, the north pole of the Earth will be the farthest away from the sun, which is also known as the Winter Solstice.
https://firstdayofsummer.info/first-day-of-winter/