i agree with the last post of maybe around 7pm IF you want to be there dining while the fireworks go off. If you just want to see the fireworks from the view there, it doens't matter what time you eat there. You can always keep your 5:50pm ressie and just keep your reciept and you will be allowed to come back to watch the fireworks. not sure if this helps or not, either way, enjoy your trip...