What are four stops, four holidays and four rest days?

Li Si is beginning of spring, Changxia, beginning of autumn and beginning of winter; Four points refers to the day before the vernal equinox, autumnal equinox, summer solstice and winter solstice; The four wonders are vernal equinox, summer solstice, autumn equinox and winter solstice.

Twenty-four solar terms are recorded on the calendar. People usually call beginning of spring, Changsha, beginning of autumn and beginning of winter "Li Si", and the day before "Li Si" is called "Decisive Day", which means "Decisive Day".