two-minute warning

In most levels of professional American football, the two-minute warning is a suspension of play that occurs when two minutes remain on the game clock in each half of a game, i.e., near the end of the second and fourth quarters, and overtime. Its effect on play is similar to that of a timeout: the game clock stops and the teams gather to discuss strategy. The suspension of play is two minutes long, the same as the short two-minute intermissions between quarters within each half. Its name reflects its origins as a point in the game where the officials would inform the teams that the half was nearly over, as the official game clock was not displayed in the stadium at the time the two-minute warning was created. With the official game clock being displayed prominently in the stadium in modern times, the original purpose of the two-minute warning is no longer necessary, but it has nevertheless evolved into an important reference point in a game. A number of rules change at the two-minute warning, including several relating to the game clock. The two-minute warning is often an important factor in a team's clock management strategy. An additional rationale for retaining the two minute warning is related to the value of television airtime at that point in the game. Television networks invariably run commercials as soon the two minute warning is called, with those slots being among the most lucrative of any in a major football telecast. The two-minute warning is called when the clock reaches exactly 2:00 if the ball is dead at that time. If the ball is in play when the clock reaches 2:00, the play is allowed to come to its normal end and the two-minute warning is called when the play ends. Therefore, it is not uncommon for the two-minute warning to be called with less than two minutes on the clock, for example 1:55.