There are 3 periods in Ice Hockey. there are 20 mins in each period.
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Hockey is divided into three periods of 20 minutes each.
There are three 20 minute periods in a regulation NHL game.
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Ice Hockey
Three (3) twenty minute periods.
In professional hockey there is 20 minutes a period in smaller leagues it varies.
Timiskaming Professional Hockey League was created in 1906.
Professional Hockey Players' Association was created in 1967.
Ontario Professional Hockey League was created in 1907.