It feel like it with most episodes.It's just not happening in real time, that's all.
But yeah, I've just this morning finished a rewatch of seasons 1-6 ( I fast forwarded through a lot) and yeah not much time actually passes. There's only really a gap between Season 2 & 3, pretty much everything else follows on from where it ends. And doing this you really notice how quickly Carl ages!
They should have left a longer gap between Seasons 3 & 4 really, allow the Prison to have really become their home, rather than the dank, dirty mess we only ever saw it as, with basically one room. Always much preferred the Prison stuff in the comics.

