Two hours. If the FP window opens sooner than the two hours, then you get get a FP when it opens. Pull FP for Space Mtn at 9 am. Ride window is from 10 am to 11 am. Then I believe you can get another FP at 10 am. Does it still work that way, folks??? Now, there are resort families of the day (at both BC and YC) and there are also SAB families of the day. Not sure how either are chosen, or if it is even every day, but I think the SAB family of the day would be one of the first families to get to the pool when it opens. I know the SAB family of the day does get loungers in a special area. Not sure what the perks of the resort family of the day are but I seem to recall that someone from the resort will drive them where they want to go.