I'm struggling to decide on the timings for my 4 year old's birthday party. My entertainer has to leave by 1:30pm but can start anytime in the morning. I have him booked for one hour. Apparently, parties at this age are no more than two hours long. Is 11am too early to start? Can't decide if to start at 11 or 11:30am. Entertainment to start at either 11:15 or 11:45 then lunch at either 12:15 or 12:45. Half an hour for lunch and cake? Then free play from between 12:45 - 1pm or 1:15 - 3pm? I was going to hire a bouncy castle but it seems a bit pointless unless I extend the party by an hour?