What is the solar term in the Millennium?

After the Millennium is the autumnal equinox.

Millennium and autumnal equinox are two of the traditional 24 solar terms in China. Millennium refers to a solar term from summer to autumn, which usually appears on September 7 or 8 of the Gregorian calendar. After the white dew, the weather gradually turned cold and the dew began to increase. This is because the temperature drops and the water vapor in the air condenses into dew. The autumnal equinox is the second solar term in autumn, which usually appears on September 22 or 23 of the Gregorian calendar. At the autumnal equinox, the direct point of the sun is located on the equator, and the time between day and night is equal, marking the official start of autumn.