Depends upon which park and which resort, but generally that seems like enough time. Getting from AK to AKL, for example, is only a 5 minute bus ride, so an hour would be more than enough. Getting from Epcot to a Boardwalk resort restaurant is only a 5 - 10 minute walk from the Epcot International Gateway exit. Getting from AK to a MK resort or from MK to AKL, however, is a longer bus ride (15 - 20 minutes), so if you have to wait a long time for a bus, then you could be pushing it (but should still probably be okay).