If I have 3 strings: Day, Month, Year (i.e. "01", "10", "1980")

How do I concatenate these strings so that they can be recognized as a Date type with formating mm/dd/yyyy. I can change them to be integers if needed. I'm thinking something along the lines of:

Code:
Dim birthDate As Date

birthDate = (Month + "/" + Day + "/" + Year)
But this code doesn't work.