When was the Millennium 22 years ago, and when was the lunar calendar?

Today is September 7th, the 21st day of the seventh lunar month. The white dew is the fifteenth solar term in the twenty-four solar terms of the lunar calendar, and it is the white dew when the sun reaches 165 degrees. "Twenty-four solar terms" said: "August Festival ... Yin Qi is getting heavier and heavier, showing white."

As the weather gets cold, you will find many dewdrops on the ground and leaves in the morning. This is because water vapor condenses on it at night, so it is named Bailu. The ancients used four seasons with five elements, and autumn was golden and golden white, so white was used to describe autumn dew.

Entering the "Millennium", I will feel a little cold at night. The Millennium is one of the twenty-four solar terms in the lunar calendar, and it is called the Millennium solar term when the sun reaches 165 degrees. Millennium is the third solar term in autumn, marking the end of Qiu Meng and the beginning of Mid-Autumn Festival.

Dew is water droplets formed by condensation of water vapor on the ground or near-earth objects due to temperature drop. So the Millennium actually indicates that the weather is getting cold.