A standard ice hockey game lasts for 60 minutes, divided into three 20-minute periods. If the game is tied after regulation, teams may enter a overtime period, followed by a potential shootout to determine the winner. The clock stops for various reasons, such as penalties, injuries, and when the puck goes out of play, which can extend the game beyond the standard duration. During the game, teams aim to outscore each other by hitting the puck into the opponent's net.