What is a birthday mmddyyyy?

Answer 1

When someone asks for a date of birth (mmddyyyy), that means they want the date as the two-digit month, followed by the two-digit day, followed by the four-digit year with no spaces or punctuation in between. For example, February 3, 1999 in the form mmddyyyy would be 02031999.

Answer 2

Days In a month