It depends on which type of clambake you’re having. Our traditional pit-style clambake takes about seven hours from the time we arrive, cook, and serve, on through to collecting all the trash. We will arrive 5 hours before serving time. Our modern pot-style clambake party takes about two and a half to three hours from the time we arrive, cook, serve, and collect the trash. For these, we arrive one hour before serving time.