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

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

So there are 6 such days each year from 2013-2019 but it will change in 2020?