How to calculate the obstacle day in the choice of wedding date?

Choosing the auspicious day of the zodiac is based on the life of a woman, supplemented by the life of a man. Apart from the fact that the time of marriage can't conflict with the year of both men and women, the first choice is the woman's wishful month and the small profit month, so as to avoid the evil month that hinders menstruation, parents, in-laws and the woman's body. Secondly, we should choose auspicious days according to the general book, and then eliminate many evil things according to the eight characters of both men and women (mainly based on the number of years of both sides, supplemented by the eight characters). The evil spirits to be eliminated for women's life are: the moon breaks, the day of death, the day of long star, the day of short star, the day of being abandoned, the day of Mars, the day of departure, the day of extinction, the day of betel nut, and the day of being killed. The evil spirits that need to be eliminated are: the arrow blade is all day long, the wife is rushing to the sun, the official day is soaring, and the day is empty. So it is generally enough to choose the right date.