Pokerbrat2000
Opinions are like A-holes, we all have one.
The clock stops on a penalty.
They do restart it, after the penalty has been marked off and the ball ready for play. But definitely not a way for a defense to chew up time, since ultimately the offense is still in control of when they snap the ball.
Actually, a case could be made for the clock starting up after a penalty favors an offense with a lead. If the Packers are up by 9 or more (2 score lead) and want to run some additional clock, they could "intentionally" commit some pre-snap penalties on offense. I think there is an unsportsman like rule/penalty that kicks in if the referees feel a team is doing it intentionally to run the clock. I remember the Badgers using this clock rule to their advantage, I believe Bret Bielema was the coach. Smart and sneaky.
I could be wrong, but when the clock is under 5 minutes in the 2nd or 4th Q, then it stops after a penalty and doesn't restart until the next snap.