Since someone mentioned booking ADRs, please correct me if I am wrong: We can book our ADRs at 180 days out if we have an existing reservation on a Disney property. We can book ADRs for our *length of stay* right? So, I plan to arrive at Disney on September 13th. 180 days before September 13th is March 17th. On March 17th I can book dining reservations for September 13th-21st, yes? Or do I have to call back on March 18th to book September 14th, March 19th to book September 15th, etc?