I logged into my flying club's online scheduling website today (May 19, 2015) and it was warning me that my Flight Review was about to expire (on May 31, 2015). My last flight review was on June 7, 2013.
According to 14 CFR 61.56 (c), the look-back period runs from (my emphasis added):
... the beginning of the 24th calendar month before the month in which that pilot acts as pilot in command ...
So am I right in calculating that my last Flight Review is actually valid through June 30, 2015?