There are three periods in a hockey game.
There are 3 periods in a hockey game. If the game is tied after 3 periods, there is an overtime. If that doesn't end in one team scoring, there can be a shootout or as many overtimes as needed.
There are three 20 minute periods in a regulation NHL game.
Three 20-minute periods are in a regulation Hockey game, and a possible 5-minute to 20-minute overtime.
there are 3 2o minute periods
not innings - periods - and there are 3 20 minute periods
There are three (3) 20 minute periods.