At a recreational ice hockey level, most games are divided into 3 periods. However, 3-on-3 leagues with shorter allocated time blocks sometimes use two periods. Basically, the time taken to resurface the ice is the major difference between recreational and professional league games. It is only at the start of each game that recreational leagues Zamboni the ice. If not for the fact that the rink surface accumulates a lot of snow at the 3rd period, the real-time won’t be elongated. In recreational leagues, the ice rink is being used for just over 60 minutes in real-time play. However, in professional leagues, the ice rink is being used for just about 120 minutes in real-time play.