After reading our post The #1 song on your important day, my neighbor Mick sent me this link: Birthday Calculator
Enter the day you were born and it tells you how many hours and how many seconds you have been alive on this earth and when you were probably conceived. After you've finished reading everything, click again and see what the moon looked like the night you were born.
Try it for yourself, your significant other, your kids, and your grandkids... It's fun!