How to Use Countdown Timer

About this tool

Count down from a selected duration with an optional finish sound.

How to use Countdown Timer

1. Set Hours, Minutes and Seconds or choose a quick preset.
2. Enable Play a sound when finished if needed and click Start.
3. Use the timer control to pause as available, or Reset to restart the selected duration.

Worked example

Choose the 25-minute preset for a focused work session.

Can the sound be blocked?

Yes. Browser audio rules, mute settings and device sleep can prevent an audible alert. Test it before relying on it.

Will it wake my device or notify me after closing the page?

Do not rely on it to do so. Keep the page available; this is not an operating-system alarm service.

Put this guide into practice

• Countdown Timer — Set a countdown with an audible alert when time is up.