1 party times can be somewhat flexible depending on the lady. She will let you know if you are close to the end.
2 health inspection is not aprt of the time, and if you shower during the part of the financial procedure it should not be.
3 The party is over at the end of the duration. MYobservation is that an end short shower and getting dressed is not part of the party.
4 sounds like after the party is over if you are drinking at the bar.