Which part of the three winters is the day before the heavy snow festival?

The winter solstice is the first of the three winters in the lunar calendar, which falls on February 20 or 22 of the Gregorian calendar, that is, 265438+65438. Snow Festival is the third solar term from winter to the future, generally on Gregorian calendar165438+1October 22nd or 23rd. The day before the snow festival belongs to the winter solstice. For Dongzi in three winters, it refers to the second solar term from winter to the future, that is, the day before the slight cold solar term.