Compensation, if the aircraft is delayed for more than 12 hours from the original scheduled departure time. (policybazaar.com)
If your ferry is delayed, you are still required to check - in no later than 1 hour prior to the originally scheduled departure time. (jerseytravel.com)
Please note that check in for all transatlantic flights will close 75 minutes before scheduled departure time for economy class passengers and 60 minutes before departure for business class passengers. (aerlingus.com)