Today we celebrate our second Permutation Day of the year! I call days like today *permutation days* because the digits of the day and month can be rearranged to form the year.

We enjoyed our first permutation day of 2012 just 21 days ago. Exactly three weeks apart! That seems unusual. I also wonder “How close could two permutation days be?”

Celebrate Permutation Day by mixing things up! Try doing things in a different order today. Just remember, for some operations, order definitely matters!

[...] rare are palindrome days? When will the next palindrome day occur?Another interesting oddity is the permutation day which occurs when the year can be rearranged to form the day and the month. For example, Feb. 12, [...]