12 solar terms correspond to solar terms in Song Dynasty.

Spring Rain Starts Spring and Bright Valley Days: beginning of spring, Rain, Sting, Equinox, Qingming, Grain Rain.

Summer is full of mountains and summer is hot: long summer, small full, mangzhong, summer solstice, light summer and great summer.

Autumn dew, autumn frost, beginning of autumn, summer heat, white dew, autumnal equinox, cold dew, first frost,

Winter snow is slightly cold in winter: beginning of winter, light snow, heavy snow, winter solstice, slight cold, severe cold.