There seems to be some discord in this thread so I propose we change Pi day to Confusion 14th. Of course perhaps we should simply use base 32 in which case pi=818 which means using either August 18th or every other June 8th. Then again a full circle is 2*Pi so if that represents a full year or orbit around the sun then Pi would be June 30th no matter how you write it. Of course the date is pretty much arbitrary no matter how you slice it. I mean it isn't like September, October, November, and December are the 7th, 8th, 9th, and 10th months. So yeah, happy 01V23E.
Edit: Perhaps that should have been happy MFRC depending on how literally you want to keep the date.