A hockey game, at its core, comprises three periods of 20 minutes each, summing up to 60 minutes of regulation play. However, the actual time spent at a hockey game extends far beyond this hour of active gameplay. Various factors, including intermissions, stoppages, overtime, and other game-day events, contribute to the overall duration. How Long is a Hockey Game? Typically, a complete hockey game experience can last between 2.5 to 3 hours.