Twenty-four solar term song

The spring rain shakes the spring and clears the valley, and the summer is full of mountains and summers.

Autumn dew, autumn frost, little snow in winter and cold in winter.

The two festivals remain unchanged every month, with a maximum difference of one or two days.

The first half of the year is June 2 1 day, and the second half is August 23.

Extended data

The winter solstice is the 22nd solar term in the "24 solar terms", and the solar calendar reaches 270 degrees. Every year, the festival is held on 65438+February 2 1-23 in the Gregorian calendar. The winter solstice marks the minimum height of the sun and the shortest day in the northern hemisphere, but the temperature in winter solstice is not the lowest. On the solstice of winter, the sun shines directly on the ground and reaches the southernmost tip of the year. The sun is almost directly on the tropic of Capricorn, and the sun is most inclined to the northern hemisphere.

The winter solstice has the shortest day and the longest night in all parts of the northern hemisphere, and the shorter the day is the farther north; After the winter solstice, the direct point of the sun gradually moved northward, and the days in the northern hemisphere began to lengthen gradually; Therefore, the ancients believed that winter was the weakest day of the year, and then the yang gradually picked up.