202 1 when is the winter solstice?

The solar terms of 1 and 202 1 winter solstice are 202 1+February 21day at 23: 59: 9 in Gregorian calendar, and the lunar calendar 1 1 month 18 Tuesday.

2. The winter solstice is the earliest of the 24 solar terms, ranking first among the 24 solar terms. The traditional calendar takes five days as a period, three periods as a section or breath, and a year is divided into twelve sections and twelve gases, which are collectively called twenty-four solar terms. On the winter solstice, the cloud of "The Seventy-Two Seasons of the Month" says: The last hidden qi is extremely extreme. On the winter solstice, the sky is south, the days are short and the shadows are long, so it is called the winter solstice.

Astronomy also takes the winter solstice as the beginning of winter in the northern hemisphere. The winter solstice marks the pole of yin and the beginning of yang, but the temperature will continue to drop in the short term because the heat radiated from the sun to the ground is less than the heat radiated from the ground to the space. Therefore, the winter solstice is also the beginning of cold. The Yin and Zhou Dynasties stipulated that the day before the winter solstice was the end of the year. Because the first month of the weekly calendar is 1 1 month of the summer calendar, there is no difference between New Year greetings and Chinese New Year, so the winter solstice is also called the Asian New Year, which is essentially equivalent to today's Spring Festival.