• The shot clock displays the time remaining during a possession which a team must make a shot attempt.

Source: ESPN (E.Miller, 2013-Getty Images)

• If a team does not make a shot attempt that touches the rim within the shot clock time period, a shot clock violation has occurred.
  • NFHS: 35 or 30 seconds to make a shot attempt for Varsity level contests
    • Shot clock timing depends on the high school state association’s rule.
    • It is optional to utilize the shot clock in Junior Varsity contests
  • NCAA: 30 seconds to make a shot attempt
  • Pro: 24 seconds to make a shot attempt
• Two visible shot clocks are required.
• The shot clocks must be connected to a horn distinct from the game clock horn.
• Displaying tenths of a second below 5.0 seconds is optional.
• Shot clocks must be clearly visible from the court.