G Guest Nov 15, 2005 #1 I want to know what formula I would use to figure out in Excel how many days before birthday. I also have the date they were born.
I want to know what formula I would use to figure out in Excel how many days before birthday. I also have the date they were born.
D Dave Peterson Nov 15, 2005 #2 If you just subtract dates and format the result as general, you'll see the number of days between the dates. So if your birthdate was in A1 (say June 10, 1973), you could use: =DATE(YEAR(TODAY()),MONTH(A1),DAY(A1))-TODAY() or =DATE(YEAR(TODAY()),MONTH(A1),DAY(A1))-TODAY()-1 Depending on if you count the birthday or not.
If you just subtract dates and format the result as general, you'll see the number of days between the dates. So if your birthdate was in A1 (say June 10, 1973), you could use: =DATE(YEAR(TODAY()),MONTH(A1),DAY(A1))-TODAY() or =DATE(YEAR(TODAY()),MONTH(A1),DAY(A1))-TODAY()-1 Depending on if you count the birthday or not.