that each shot clock carry a duplicate readout of the time left in the period in addition to the shot time. Since 2011, the shot clock also shows tenths of a second past five seconds left on the shot clock. Many college and even some high-school shot clocks (in states where a shot-clock rule is in effect for high-school basketball) now also include a game timer.

Three-sided game shot clocks became a trend in the 1990s, and after a controversial series of calls during the 2002 NBA Playoffs, the