Day of Birth, based in the United Kingdom, describes its purpose as follows:
This site basically tells you the day of the week that you were born on. It also tells you other pointless but fun things such as: your star sign, how old you are, what season you were born in, how long until your next birthday, and how many days/hours/seconds you have been alive (assuming 12:00 midnight so the last two are approximations only). The site also provides links to other websites, so you can find more information such as famous people or events that share your birthday.
I learned that I was born on a Thursday, and that I am 5,377 days or 369,050 hours or 1,328,581,761 seconds old, and that on my birthday in 1620, the Mayflower Compact was signed (The Mayflower Compact was signed by the 41 men on the Mayflower when they landed in what is now Provincetown Harbor near Cape Cod. The compact called for "just and equal laws.)