to an injury, to measure the spot of the ball with the chain crew or (in televised contests) to insert television commercials into the telecast. Ice hockey In ice hockey, each team is allowed one thirty-second time-out per game, which may only be taken during a normal stoppage of play. In the National Hockey League, only one team is permitted a time out during stoppage. However, in the International Ice Hockey Federation rules, both teams are permitted a time out during the same stoppage, but the second team must notify the referee before the opponent's time-out expires. In the NHL, teams lose their time-out if they unsuccessfully challenge a goaltender interference call, and cannot challenge if they are already without their time-out. Since the 2017–18 season, teams cannot utilize their time-out after an icing, except for the team who was not charged with the icing. In addition, they retain their timeout after every successful goaltender interference challenge; unsuccessful offside challenges result in a minor penalty for delay of game. Team handball In team handball, one sixty-second time-out per half per team is allowed. Time-outs are called by the head coach by handing a green time-out card to the match official, and can only be called when the team is in possession of the ball. Volleyball In volleyball, the Fédération Internationale de Volleyball (FIVB) stipulates two 30-second time-outs allowed per team, per set. In FIVB World and Official Competitions, there are two additional 60-second technical time-outs in each set when the leading team reaches the 8th and 16th points, however there is no technical time-out in a tie-breaking set (5th set) (though there is a change of ends at 8 points). Water polo In water polo, each team is entitled two sixty-second time-outs in regular time, and one extra time-out in extra time. The time-out can only be called if the team is in possession of the ball. Criticism Time-outs have been criticized for slowing games down and thus diminishing their entertainment value. See also Truce term References Sports terminology Terminology used in multiple sports