You cannot choose a day that conflicts with your birth year to sweep the tomb. You can go to the tomb one day in advance.
In choosing auspiciousness, the chosen day cannot conflict with the party's birth year and year's zodiac. Days that conflict with the party's birth year and year's zodiac will be detrimental to the party. Six Chong: Ziwu, Maoyou, Yinshi, Sihai, Chenxu, Chouwei. For example, if the chosen day is Jiazi day, then it is not suitable for people born in the Year of the Wu Horse to choose this day, because the day Wu and Zi conflict, which is not good for the person concerned.