It's 01-02-2010. It reads the same, from left to right, as it does from right to left. As we all learnt from The Simpsons, that's a palindrome.
Bart: “Hey, where’s Otto?”
Skinner: “Now there’s one palindrome you won’t be seeing for a while.”
Update: By popular request, here's They Might Be Giants with "I Palindrome I".
Happy Palindrome Day.
