When is the Millennium?

The Millennium is from September 7th to 9th in the Gregorian calendar.

Millennium is the15th solar term in the "twenty-four solar terms", and the third solar term in autumn is the end of the application of the moon in the lunar calendar and the beginning of the unitary month. Fighting fingers; The sun reaches longitude 165 degrees; Gregorian calendar September 7-9. "White dew" is an important solar term reflecting the growth of cold in nature. As the weather turns cold, it is sunny and hot during the day, but the temperature drops quickly after evening, and the temperature difference between day and night is large.

Phenological phenomenon

"Hongyan comes, Xuanniao returns." After the Millennium, migratory birds that are most sensitive to climate migrate collectively. Hongyan began to fly from the north to the south, and mysterious birds from the south also flew back to the north, and various birds began to store food for winter. There is a saying in the folk proverb: "The white dew flies in the south in the autumn night", "When beginning of autumn knows it, it makes people sleep, and the sunflower laughs in summer, and the white dew returns to the wild goose, and the osmanthus fragrance fills the garden in the autumn equinox". Therefore, migratory birds like geese are regarded as a symbol of autumn.