Also, look at:	Check-in time The time written on the charter agreement stating when your holiday starts. The duration -in time- the check-in procedure takes (usually 1-2 hrs)			related sites
Sidenote From the moment your holiday starts you should estimate a 3-4 hrs delay until you can set sails.  This includes the check-in procedures, the paperwork and provisioning. More info & tips related to checking-in