Welcome to PIrthday.com!

This little app will help you to calculate the most important days in your life, your PIrthdays (or PI-birthdays)!
Just enter the date of birth for which you want to know the dates and hit the button! Have a πe (or π-pie) and celebrate with all your friends.
Further essential services on this site:

• On Happy PIrthday you can see who celebrates his PIrthday today!
• On Baby PIrthday you can see when you should have business time
  so the chances that your child will be born on π-day are maximized.
  

Have fun!