Timer
Online countdown timer
Set a duration, start the countdown and receive an in-browser alert at the end.
Hours
:
Minutes
:
Seconds
00:00:00
Set a duration, stay focused
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Practical guide
Online countdown timer
This timer is made for short, practical countdowns. It can support focused work, classroom tasks, breaks, cooking preparation and meeting segments without requiring a download or account.
How to use it well
- Enter the hours, minutes or seconds you need.
- Choose an alert and check that your browser is allowed to play sound.
- Start the timer and keep the device awake for the most reliable notification.
Good uses for this tool
- Use 25–50 minute blocks for focused work with planned breaks.
- Time a classroom exercise or agenda item so every participant gets a fair turn.
- Set a visible reminder for cooking preparation while still following appropriate kitchen safety.
Frequently asked questions
Why did the alarm not sound?
Check media volume, silent mode, browser sound permission and whether the tab or device was suspended.
Can I run it in the background?
The countdown calculation can continue, but notification timing depends on browser and operating-system behavior.
Does it install anything?
No. The timer runs in the browser.
Content last reviewed 14 August 2026 by the TimeGoii editorial team