When is it getting colder and colder?

The weather is getting colder and colder in the Millennium solar terms.

The Millennium solar term means that the weather is getting colder and colder. At this time, the yin and cold qi rises, and the summer heat and residual temperature in early autumn gradually dissipate, and it is hot and cold day and night, and the cold condenses. The Millennium is an important solar term reflecting the growth of cold in nature. Twenty-four solar terms wrote: "The moisture of earth and water condenses into dew, autumn belongs to gold, golden white, white dew is color, and qi begins to be cold." The Millennium solar term is the millennium when the sun reaches longitude 165.