What is Solar Terms?

The Solar Terms are twenty-four divisions of the solar year that mark seasonal transitions in the Chinese calendar. Each term spans approximately 15 days. Solar terms determine the boundaries of lunar months, govern agricultural timing, and define the seasonal strength of Five Elements in Liu Yao analysis. Key terms include Lichun (Start of Spring), the Equinoxes, and the Solstices.

Source: Huainanzi (淮南子), Tianwen Xun (天文訓)