Can I use solar terms?

Solar terms cannot be used. People think that the wedding day should avoid four days to the day before, that is, beginning of spring, Changxia, beginning of autumn and beginning of winter in 24 solar terms and the day before the vernal equinox, autumnal equinox, summer solstice and winter solstice are unavailable. Because these four days are the day before the vernal equinox, autumnal equinox, summer solstice and winter solstice. In the Book of Changes, whether it is a wedding, a funeral or a business opening, we should avoid choosing the 24 solar terms of the lunar calendar.