urTimer

Random Timer

Choose a range, and the timer picks a random length inside it. Keep the time a secret, and nobody knows when it will ring.

05:00

Tasks

    No tasks yet. Add one and press play to run it on the timer.

    How it works

    • Set the shortest and the longest time in minutes.
    • Press Start a random timer. The length is chosen at random in that range.
    • With Keep the time a secret on, the numbers are hidden until the chime.
    Random Timer running, with the time left shown as a shape
    Press Start and watch the time run out. The line under the timer shows when it ends.
    Random Timer in full screen
    Full screen hides everything except the timer, so it is easy to read on a projector or a TV.
    Styles to choose from for the Random Timer
    Pick one of 19 styles, then a color and a background of your own.

    Games that need a random timer

    • Hot potato: pass an object until the timer rings.
    • Musical chairs or freeze dance without a DJ.
    • Surprise tidy-up challenges in class.
    • Random check-ins during study time.

    Fair and unpredictable

    The length is chosen evenly across the range, so every second in it is just as likely. The Circle style shows that time is passing without giving away how much is left.

    Questions and answers

    Can I see the random time?

    Turn off Keep the time a secret and the timer shows the numbers as usual.

    Can I use seconds?

    Yes. Use decimals for parts of a minute, for example 0.5 for thirty seconds.

    Does it pick a new time each round?

    Each press of Start a random timer picks a new length. Press Reset and the same length runs again.

    Is the timer truly random?

    It uses your browser’s random number generator, which is more than random enough for games.