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.
Overtime periods are extra periods beyond the third regulation period during a game, where normal hockey rules apply. Although in the past, full-length overtime periods were played, overtimes today are sudden death, meaning that the game ends immediately when a player scores a goal.For the 1983-84 season, the NHL introduced a regular season overtime period of five minutes, compared to the twenty minutes of regulation periods. April 18, 1987 - Pat LaFontaine of New York Islanders scores a goal against Washington Capitals at 68:47 of overtime which ends longest game seven in NHL playoff history. 2  Islanders goaltender Kelly Hrudey makes a record 73 saves. 3  See Easter Epic.