The answer is simple: it depends on the league. In the National Hockey League (NHL), for example, regular-season games can go into a 5-minute, 3-on-3 overtime period, followed by a shootout if necessary. However, in playoff games, there are no shootouts, and teams keep playing until someone scores. If you want to know more about the thrilling
NHL playoff overtime rules. Think regular hockey until there is a winner played like the regulation periods. The playoffs will continue with 20-minute periods of five-on-five play until there is a winner. Florida's Sam Reinhart scored at 3:02 of overtime. May 11: Hurricanes 3, Devils 2. Carolina's Jesper Fast scored at 7:09 of overtime. May.