A day past is autumn, and autumn past is winter.

The order is: beginning of spring, beginning of autumn, Chushu, Cold Dew and Chushuang.

At beginning of spring time, the sun reached 3 15 on February 3-5 in Gregorian calendar. Beginning of spring means the beginning of a new cycle, which is the beginning of everything and the meaning of all self-renewal. In the era of main branches, beginning of spring is the beginning of a year, and beginning of spring is the beginning of spring and the beginning of a year.

In beginning of autumn, the sun reached 135 on August 7-9 in Gregorian calendar. "Twenty-four solar terms": "Autumn also struggles, and things gather here." Beginning of autumn generally indicates that hot summer is coming and autumn is coming.

In summer, the sun reaches 150 on August 22-24 in the solar calendar. "Twenty-four solar terms" said: "If you go, you will stop, and the summer will stop here." "Chu" means termination, which means that the summer heat is about to pass, the summer heat will end on this day, and the temperature in most parts of China will gradually drop.

Cold dew, Gregorian calendar 65438+1October 7-9, the sun reached 195. Cold dew means that the temperature is lower than that of the white dew, and the dew on the ground is colder and will soon condense into frost. In the cold dew season, Nanling and the vast area to the north have entered autumn, the northeast has entered late autumn, and the northwest has entered winter or is about to enter winter.

The first frost, Gregorian calendar 65438+1October 22-24, the sun is located at 2 10. The first frost solar term means that the weather is getting colder and the first frost appears. It is the last solar term in autumn, which also means that winter is about to begin.