Park trips run a second calendar underneath the first one. Reservations, dining and several planning tools open on dates counted from your arrival or your stay, and the exact dates depend on what you booked and where you are staying.
Get your own dates instead of a general answer
Ask which planning windows apply to your reservation, where you are staying and how many nights you booked.
Windows are not the same for every guest and they change. The reliable version of this answer comes from your own confirmation and from Disney's current planning information for your dates, not from a screenshot someone posted two years ago.
Write the dates down the day you book
The day a reservation is confirmed is the day the whole planning calendar becomes knowable.
- The date each reservation type opens, with the hour and the time zone
- The payment dates on the reservation itself
- The date by which the group has to agree on which parks and which days
Choose what your family will reserve, and what it will not
A day with two planned anchors and open space around them is easier to enjoy than a day that has to be executed.
Decide which meals and which moments matter enough to sit at a keyboard for. Everything else can be decided in the morning, by whoever is already awake.
Missed a window? Ask what opens back up
Cancellations and same-day availability are a real part of how these systems work.
Ask what to check, when to check it and whether anything can be arranged on the day. Then decide whether your family wants to spend a morning on it or would rather keep the morning.
The park planning calendar starts the day you book, not the month you travel. Write down your own dates and choose the few worth protecting.
Details that change by date, supplier or destination should always be confirmed before you decide.