There are 90 minutes to a football game, plus injury time to be added.
In an NFL game there are 4 quarters of 15 minutes each, making it 60 minutes in a game.
There are 4 quarters in a football game. They are each 15 minutes long.
Four quarters of 15 minutes each.
15 minutes for each quarter. 60 minutes for the whole game.
TV allots three hours to a football game. It may last a few minutes less or a few minutes more.
15 minutes per quarter.