How to calculate your number: Begin with your date of birth. Reduce the date to a single digit, if you’re born on a double-digit date, by adding the digits involved. For example: If you’re born on the 12th of a month, your number is 1 + 2 = 3. (Plus Leos) From this Leo-governed month of August (No. 1; Sun), your very own number, a much better time