ROTFLMAO. It has everything to do with being a day “off”.

366 != 365
366 == 365 + 1

From: 28 Feb 2011
To: 28 Feb 2012
Interval: 365 days

From: 01 Mar 2011
To: 01 Mar 2012
Interval: 366 days.

There is your day “off”. And since proof is in the pudding, here is online calculator for those mathematically challenged.

::slight_smile: :-X