A full-length game is divided into two halves. Depending on League rules, a half may range from 20 to 45 minutes with a 5- to 15- minutes break in between. The referee keeps time with a watch and time does not stop for balls out of play, free kicks or other stoppages in play. (At the referee’s discretion, time may be added if he/she feels time was lost due to substitutions, injuries, or players/team wasting time or stalling.) The game begins with a coin toss and kickoff at the center of the field with each team positioned on its own side. Teams switch sides after halftime.