change goals when the ball is next out of play". Overview One benefit of half-time in a field game is to allow teams to swap their positions on the field in order that the effects of the natural conditions such as sunlight and wind direction are experienced fairly by both teams. In some sports this is achieved without the need for half-time: for example, in cricket fielding positions of players are rotated after a set passage of play. In other sports no such provision is necessary, for example in baseball, where playing positions do not change and both teams occupy the same locations on the field of play, though there is frequent rotation of players in the ordinary course of play. Half-time for spectators offers the opportunity to visit the toilet, get some food or drink, or just exercise cramped limbs, without the fear of missing any of the action. A half-time show may be put on for the spectators to keep their attention, most famously in the case of the American football Super Bowl. As many spectators at the ground may be otherwise occupied using stadium facilities it might be inferred that the scale and spectacle of half-time entertainment is more directly related to the size of the potential television audience. In many sports that are televised, half-time offers the opportunity to advertise, a valuable source of revenue for television companies. In addition, it allows analysis of the game so far by pundits; controversial incidents or exceptional play may be highlighted at this time. It also allows viewers to catch up with any action that they may have missed. Half-time has spawned one of the most enduring clichés to describe football: that "it's a game of two halves." List of team sports With half-time With intervals other than half-time Ice hockey is played in three periods of twenty minutes with eighteen-minute intermissions between regulation periods. Water polo Test cricket Box lacrosse Volleyball matches typically take three minutes between sets 1 and 2 and any sets after the 3rd (if played). The interval between sets 2 and 3 is sometimes longer, and sometimes the same. No half-time or equivalent (other than to allow movement of players in the natural course of play and/or TV commercials) Baseball (although there is a seventh-inning stretch) Softball References Ball games Terminology used in multiple sports