Hi Sean!
A warm welcome to planDisney. Thank you for visiting us with your question about making
advance dining reservations.
During the
phased reopening of Walt Disney World Resort, all Guests can begin making advance dining reservations 60 days prior to arriving in Walt Disney World Resort.
Guests staying in Disney Resorts Collection hotels can make their dining reservations 60 days prior to arriving in Walt Disney World Resort, plus the length of their stay (up to 10 days).
With an arrival date of September 19, 2021, you can start making advance dining reservations on July 21, 2021, Sean!
I hope this helps answer your question. If you have any additional questions, please visit planDisney again. We are all EARS!
Wishing you a Magical Vacation,
Priscila