2010.01.02, or if you prefer, 01-02-2010. It’s one of only 331 palindronic dates in the YYYY-MM-DD (or MM-DD-YYYY) format. The next one will be on November 2, 2011; after that, there won’t be another until February 2, 2020. The next one to take place in January will take place a bit over a century from now.
Just mentioning. Consider this an open thread.