A standard professional soccer game lasts 90 minutes, divided into two halves of 45 minutes each. Additionally, there is usually a 15-minute half-time break between the halves. The referee may add stoppage or injury time at the end of each half to compensate for pauses in play, which typically adds a few minutes to the game. In knockout or tied games requiring a winner, extra time consists of two 15-minute halves, potentially extending the game up to 120 minutes, followed by penalty shootouts if necessary.