The one I quoted from FAR 1.1 is the regulatory definition of the word "night." It is what "night" means when it is used in every other regulation, unless something in the words of the regulation changes it.Everything I've read or been told defines night for our purposes as one hour after sunset and one hour before sunrise.
Is this incorrect?
One hour after to one hour before is one of those exceptions and it only applies to the single regulation in which it is used - night passenger currency in 61.57.