But that isn't what we see onscreen. If it's not seen or not referenced then it doesn't really count.
People have accepted a cliché that Kirk made it with the green chicks, but it never happened...until ST09. We have people accepting that being a redshirt is effectively an automatic death sentence, but that isn't what we see.
If we accept what's on screen the mission lasted roughly 79 hours.
Both are jokes. People having fun with some of the tropes of the show.