Are you asking about FD or RO?
You will be eligible for
Free Dining for your entire trip as long as your reservation begins on a date that FD is offered.
A RO discount is only valid for the actual nights that a RO discount is offered. (e.g. If RO discount is Jan 1 - 5 and you stay until Jan 8, you will get a RO discount up until the 5th but not after that.)
Does this help?