90 day ADR question?

[arthur06]

I am leaving on Sept 12th, since July is a 31 day month do I call on June 13th or can I call on June 12?

Cause if it's June 12th, I better be dialing!

Thanks

 

[ROEDISNEY]

http://www.pscalculator.net/pscalc.php
You can make your 90 Day Advanced Reservations on 06/14/2009