Upper Allen Township and Keystone Marker Trust, a non-profit organization, have collaborated to restore the historic Shepherdstown Keystone Marker located on the Gettysburg Pike.
Each NHL game features 60 minutes of playing time, broken down into three 20-minute periods. The league also mandates a 17-minute intermission after the first and second periods to flood and ice and provide the players with a rest period.
The actual playing time of a hockey period is 20 minutes. However, this is not continuous play as in soccer.Depending on the amount of breaks during the first and second  periods, the intermissions between periods can las â¦ t from 15 to 20  minutes. There are three television timeouts in each period.