From the names for the 24 solar terms, we can see that their division follows the changing seasons and climates. Among them, Start of Spring, Start of Summer, Start of Autumn, Start of Winter, Vernal Equinox, Autumn Equinox, Summer Solstice and Winter Solstice are used to indicate seasons by dividing the year into four seasons: spring, summer, autumn and winter. The Vernal Equinox, Autumn Equinox, Summer Solstice and Winter Solstice fall under the discipline of astronomy and are used to indicate the turning points of the changes in the luminosity of the sun. Start of Spring, Start of Summer, Start of Autumn and Start of Winter show the starts of the four seasons. China has a large territory with clear monsoon and continental climates. The climates in different regions in China vary greatly — thus, the changes of the four seasons vary greatly.