on Princess recent cruises there were to Europe on the Island and Enchanted Princess
Sea day Hours were 9am to 12noon / 2pm to 5pm / 7pm to 1000pm / paid service available from 10pm t 1am @ $5 per hour per child.
Port day hours were 8am to 5pm and 7pm to 10pm
If you were on a Princess excursion that left earlier you could drop them off earlier by letting staff now the day prior so they could plan their staff. One day we dropped them off at 645am - as we had to meet at 0650 in the theatre for tour.