Well today being Dec 12th of 2012 this will be the last repeating date until Jan. 1, 2101. For obvious reasons repeating dates can only occur the first 12 years of a century.
If you are a number 12 fan then 12/12/12 at 12:12 is an exciting time for you!
Happy 12/12/12 from us to you! Enjoy the day!