Well, I know where you are going with that, but that is only
one interpretation. There's been more than enough discussions online about it, so I am not looking to rehash it here.
For the sake of
@Phoebasss, the
other interpretation is you must have at least 1 hour of interruption. We've had combats run over 6 minutes in game time (something like 67 rounds I think was our longest fight), but nothing close to an hour. Pretty much, the only way your long rest will be interrupted is if you have to
leave your camp/resting place.