In National Hockey League (NHL) game there are three 20 minute periods with two 15 minute intermissions in regulation time.
The regulation time on the clock for a NHL hockey game is 60 minutes (3 periods). If the score is tied, overtime is 5 minutes. Then come a shootout which is first 3 rounds, then if still tied, goes until one team wins. There are timeouts and such in the hockey game, so never is it 1 hour of actual time.
Once the puck stops the clock stops. When the puck is dropped the clock starts. A Total of one full hour (60 Minutes) of actual playing time.
The average time for 3 periods of hockey is about 2 hours not including Intermissions with Intermissions a game is around 3 hours.
Yes, at one time it was.
No. One at a time.
I believe there's two goalies in every hockey game.