Games are divided into 40-minute halves, with an intermission of not more than 15 minutes in the middle. The sides exchange ends of the field after the half-time break. Stoppages for injury or to allow the referee to take disciplinary action do not count as part of the playing time, so that the elapsed time is usually longer than 80 minutes. The referee is responsible for keeping time, even when—as in many professional tournaments—he is assisted by an official time-keeper. If time expires while the ball is in play, the game continues until the ball is "dead", and only then will the referee blow the whistle to signal half-time or full-time; but if the referee awards a penalty or free-kick, the game continues.
Games are divided into 40-minute halves, with an intermission of not more than 15 minutes in the middle. The sides exchange ends of the field after the half-time break. Stoppages for injury or to allow the referee to take disciplinary action do not count as part of the playing time, so that the elapsed time is usually longer than 80 minutes. The referee is responsible for keeping time, even when—as in many professional tournaments—he is assisted by an official time-keeper. If time expires while the ball is in play, the game continues until the ball is "dead", and only then will the referee blow the whistle to signal half-time or full-time; but if the referee awards a penalty or free-kick the game continues.