Running out the clock
In American football, each quarter of a game is measured with a 15-minute game clock, or 12-minute clock in many high school football codes and the German Football League. A team in possession of the lead and the ball will attempt to use up as much of the game clock as possible in order to bring the game to an end more quickly, thus denying the opposition another chance on offense.
60 Minutes
Starting in the 2012-13 season, in order to accompany a new NFL rule that the second game of an NFL doubleheader start at 4:25 pm, CBS officially changed the start time of "60 Minutes" to 7:30 p.m. Eastern time on Sundays in Eastern and Central Time Zone markets when there is an NFL doubleheader scheduled to air (there are nine doubleheaders during the NFL season – eight during the first 16 weeks of the season, and the final week) to protect against overruns. The start time remains at 7:00 p.m. Eastern time in markets where only a single game is set to air (markets that have only a 1:00 p.m. Eastern time game on single game weeks, and in markets where a home team's NFL game is on Fox at 4:05 p.m., meaning CBS cannot air a doubleheader because of restrictions imposed by the NFL).