Question about reservation 180 day mark

[Disneyatic]

I was inputting our trip info into the Intercot ADR planner and I put our arrival day as 12-13-08. It is telling me that our first day available to make ADRs is 6-16-08.
Why the 3 days difference? Shouldn't our 180 day mark be 6-13-08??

[Figment!]

Because October, August and July have 31 days. :)

If one were to start on 12-13-08 on a calender and count backwards 180 days, one would wind up on 6-16-08. (The Planner saves one that trouble ;) )

Reservations literally open 180 days in advance, not 6 nominal months from the date.

[Disneyatic]

Oh I see that totally explains it!
I was counting 6 months out and not taking into account the extra days!

Thanks for the quick response!