A floorball game is officially played over three periods lasting 20 minutes each (15 minutes for juniors). The time is stopped in the case of penalties, goals, time-outs and any situation where the ball is not considered to be in play. The signal of a timeout should be a triple sound. An intermission of 10 minutes (or maximum 15 minutes in some competitions) takes place between each period, where teams change ends and substitution areas. Each team is allowed one timeout of 30 seconds (which is often used late in matches). There are two referees to oversee the game, each with equal authority. If a game ends in a tie, teams play ten minutes extra, and the team that scores first wins. If the game is still drawn after extra-time, a penalty shootout similar to ice-hockey decides over the winner.