Without huddles and penaties etc.

About 1 hour, if you subtract huddles and ect. I would guess around 44 minutes

DirectTV has a feature with their NFL Sunday Ticket package called Short Cuts where they actually air the games with only the plays. No huddles, no timeouts, no commercials, no filler...just the plays (but you do see All of them).
No game takes longer than 32min. (!)
In fact, most take about 25! Report It

60 minutes. Each quarter is 15 minutes long. If there were no stoppages in a game (timeouts, commercial breaks, penalties, huddles, etc), then a game would only be 60 minutes. But to answer your question, the actual playing time in a game is 60 minutes.

1hour

60 minutes. There are four 15 minute quarters.

60 min.

60 min