You must have missed that question on your pilot written exam. Most
everything in aviation is done by the "calendar" time period. Medicals,
annuals, BFRs, and the like are done by "calendar" months. A calendar month
expires twelve months at the END OF THE MONTH in which it was performed.

If your annual was done on 6 June, then it expires at the stroke of midnight
on 30 June. At 00:00:01 on 1 July, you are out of license (or medical, or
BFR or ...).

Jim

--
"Work like you don't need the money, love like you've never been hurt, and
dance like no one is watching."
--Satchel Paige


"Larry R" wrote in message
ps.com...
Actually, I was looking at the " within the preceding 12 calendar
months" phrase of 91.409 (a). I *think* that means that, in my case,
the preceding 12 months would be from June 06-June 07 (on the return,
July would be the actual month).

Just throwing that out until I can reach the owner...