Hour and 30 mins
How Long Does A Hockey Game Last?
I assume your question is about field hockey.
A match lasts 2x 35 minutes. In some tournament forms, extra time may be needed if scores are level. Extra time lasts 2x 7,5 minutes. Normally extra time is played with the golden goal rule.
If after the extra time there's still no winner, penalty strokes will be taken. The EHL (european hockey league) uses a shoot-out in these situations.
A match lasts 2x 35 minutes. In some tournament forms, extra time may be needed if scores are level. Extra time lasts 2x 7,5 minutes. Normally extra time is played with the golden goal rule.
If after the extra time there's still no winner, penalty strokes will be taken. The EHL (european hockey league) uses a shoot-out in these situations.
1 hour
A professional hockey game has 3 periods which last 20 minutes each. This does not take into account the time that is used at half time or time-outs or delay of game for fights. So, it actually runs longer than 1 hour.