In this year, tonight will be the longest night of the whole year while December 22 will be the shortest day of the whole year.

According to astronomers, the night between Wednesday and Thursday will be the longest night of the year in the Northern Hemisphere of the Earth and Thursday will be the shortest day of the year.
This occasion falls in the month of December every year and its dates can be any day from December 20 to 23. This year, this opportunity has come on the night and day of December 22.
It should be noted that the occasion when the northern hemisphere has the longest night of the year, it is also called "Winter Solstice" or "Northern Solstice" in astronomical language. However, there is a common misconception in this regard that on the occasion of the Winter Revolution, the distance of the Earth from the Sun is the highest;
On the contrary, the fact is that the Earth is tilted 23.4 degrees on its axis, while during the axial rotation, the Earth's own axis also falters like a rotating lato.

There comes an occasion in the year revolving around the Sun when the extreme tilt of the earth's axis towards the north is in the opposite direction from the sun, but since the earth's axial rotation is a continuous process, the tilt of the earth's axis starts to reverse immediately after this opportunity comes.

That is, the inclination of the northern hemisphere of the earth starts to move towards the sun once again. As a result, soon after the Winter Revolution, the nights become shorter and the days longer.