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    12 Second Timer

    Short countdown timer that starts immediately. Perfect for quick exercises, brief tests, or short timing activities.

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    12 second Timer FAQ

    How do I start the 12 second timer?

    The 12 second timer starts automatically as soon as the page loads. You can pause it at any time, then press Resume to continue, or Reset to start a new 12 second countdown.

    Will the 12 second timer alarm sound when I'm on another tab?

    Yes. The browser will play the alarm sound when the 12 second countdown reaches zero, even if the tab is in the background. Make sure your device volume is on and the tab is not muted.

    What is a 12 second timer good for?

    A 12 second countdown is great for reaction drills, quick countdowns, kitchen tasks, or photo timers. It is a quick way to time-box an activity without juggling a stopwatch app or phone alarm.

    Is this 12 second timer free to use?

    Yes — the 12 second timer is 100% free, requires no signup, and works in any modern web browser on desktop or mobile.

    Set the timer for the specified time

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