Basketball Shot Clock

Shot clock, or "24-second-clock" is used in both FIBA and NBA basketball since 1954 to speed up the game. The timer is usually mounted above the hoop, below the game clock.

Basic Shot Clock Rules

After the offensive team gains possession of the ball in their own half, they have 8 seconds to move the ball into the opposition's half. The ball is awarded to the other team if they fail to score or at least hit the rim in 24 seconds.

The shot clock operator's job is to start the timer when a team gains full possestion of the ball and to reset it when the other team gets control: turnover, offensive foul, violation, defensive rebound and after a scored basket. The timer is always reset when the ball hits the rim after a shot. The counter should never be running in dead ball situations and should be started when the referee signals lowering their arm.

In case of a defensive foul or kick ball violation the clock is reset to 14 if it's under 14 seconds.

Close intro


setting options

Move your mouse above the bottom right corner to reveal three icons to pause, to set a value manually and to reset to 14 seconds instantly.

shot clock rules settings

Open the settings

College basketball for both men and women has a 30‑second limit. Adjust the default 24 second duration in the first input field.

Adjust the size and color scheme. You can add a smaller shot clock to a full featured basketball scoreboard.

The shot clock is started manually when a team gains full control of the ball. You can enable the option to start it automatically with the main game clock.

Use the C keyboard command to start/stop the shot clock.

basketball 24 seconds shot clock
Only 2 seconds left. It's time to shoot.

How 2 use?

How to use

Close this intro text or scroll down to unveil the scoreboard. The gear icon in the menu opens the settings where you can experiment with the available options. You can always refresh the page (F5 key) to come back to the default configuartion.

Click the panels to increase the score and other counters and to start/stop the timer. Hover the bottom right corner of the panels to reveal additional shotcuts.

There art three main modes of operation: the default score counter, the score adder where the porgram automatically adds the scores and the lap timer.

Keyboard commands

Space – start / stop timer Esc, Enter – exit settings and edit mode E – enter edit mode R – toggle settings Q – increase home team score A – decrease home score W – increase visitor team score S – decrease visitor score P – increase period counter I – home team timeout O – visitor timeout Y – home team foul/shot counter

U – visitor team foul/shot counter T – change alternating posession L – toggle overtime C – pause shot clock X – reset shot clock to maximum Z – set shot clock to 14 seconds V – edit shot clock value

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The settings

Open the menu (≡) in the top right corner of the screen and click the gear icon to access the settings:

Reset – restore the default values with a click
Mode – beside the default score counter we can add the scores of different rounds and measure lap times. Start the timer when the lap timer mode is active and click the team/player to record his time.
Teams – add up to 10 players or teams the the game. The default is 2: Homve vs. Visitors.
Timer – set the timer to show the minutes and seconds, minutes-seconds-hundredths or automatically show the hundredths when the clock is under one minute. Decide whether to count down or up.
Period – adjust the period duration and toggle the overtime mark
Sounds – turn on to sound horn at the end of the period or when the shot clock expires
Font – beside the default 7-segment display you can use other font styles

Shot clock – a secondary 24 second timer is used to measure the play in basketball. Set up its duration, size, colors and whether you wish to start it automatically with the main timer.
Colors – activate one of the predefined templates or set your custom 4 colors to style the scoreboard
Style – an advanced field that requires CSS code and allows you to style the board without limitations
Images – add an image background and display the logos of the two opposing teams specifying the URL of the images. You can't upload your image files to our server so I recommend using a thrid party file sharing service such as or The recommended file format is png with transparent background.
Adjust – set the perfect layout for your board adjusting its size, font size and top margin. Use the
Show – pick which panels you wish to hide and show. Each panel group has a close button which shows up when the settins are open and you hover a display with your mouse.
Open the settings to reorganize the order of the rows and hover the section you'd like to move up. Click the top arrows that show up on the right of a panel while hovering it. This way you can move the clock to the top and the score to the bottom.

Edit mode

Toggle edit mode with the pencil icon in the menu. A cursor starts blinking in the first score counter when the edit mode is activated. Use your keyboard to set the values easily. Make sure to enter number values in the counters, otherwise they will be set to zero.

The keyboard shortcuts are disabled when the edit mode is turned on.

Full screen

Toggle full screen mode to hide the browser frame. You can also do this pressing the F11 key in most web browsers. You might need to adjust the zoom and top margin in the settings.

Save / Broadcast

This option collects every current variable on your scoreboard and encodes it in a web link. Every value that differs from the default will be added as a URL parameter. This way you can save your settings and share a game.

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Reset Score Timer Period Players
Mode ScoreBoard ScoreSheet LapTimer
Teams 1 2 3 4 5 6 7 8 9 10
Timer M & s All Auto      Count up Count down
Period m OT     Font 18 18 18 18 18
Shot s      24 24   Start: Manual Auto
Default Dark Light B&w
Show Title Team Score Labels Timer Shot Players
Possession Fouls Penalties TimeOut Period Ranking