Best day on Dec 2016 to move to a new house

Good day! My family and i are the planning to move to pur new house late december of this year. When is the best date?
Your opinion will be a great help. My husband's B.O.D is august 29, 1966. Mine is April 19,1968. My son is nov 11, 1991 and my daughter is jan 30, 1998. Thank you.