Countdown Timer

Count down to zero with a large, readable display and an optional sound when time is up.

Runs entirely in your browser.

How to use Countdown Timer

  1. Enter the hours, minutes and seconds, or pick a target time of day.
  2. Press “Start”.
  3. An optional sound plays when the countdown reaches zero.

About this tool

A dependable countdown for cooking, breaks, exams and meetings. The timer keeps accurate time in the background, and can play a soft tone when it finishes.

Frequently asked questions

Will the alarm sound if my device is muted?
The sound respects your browser’s audio settings. On some browsers an interaction with the page is required before audio can play.

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Stopwatch A precise online stopwatch with lap times. Time Calculator Add or subtract hours, minutes and seconds. Date Difference Calculator Find the number of days, weeks, months and years between two dates.