Originally posted by Dr. E It's not every single game.
There's a post somewhere on some of the mechanics of why/when a game runs. A short explanation is, half the games run in the first 25 minutes, the other half the next 25 minutes. And, stuff happening in the game effects time. More passing equals a later running game due to the clock stops.
BTW if this is true, it is the most retarded thing I have heard that it is behind as far as it is generally speaking, and it is a general rule of thumb that it is behind.