Timers & Clocks
Online Timer
Set a countdown, choose a preset or enter a custom duration, and let the alarm remind you when time is up.
05:00Paused
Quick set
Custom time
Timers run locally in your browser. No account or upload is required.
A countdown timer you can trust
This timer uses an absolute timestamp to track remaining time, so it stays accurate even if your browser throttles background tabs. When the countdown reaches zero, it plays a rising alarm and can send a browser notification — perfect for cooking, studying, meetings or any timed activity.
Frequently asked questions
- Will the alarm sound even if I switch tabs?
- Yes. The timer uses an absolute target time, so it counts down correctly even if your tab is backgrounded. When time is up, it plays a sound alarm and can show a browser notification if you have granted permission.
- Can I set a custom duration?
- Yes. Enter hours, minutes and seconds, then click Set timer. You can also use the quick-set presets for common durations.
- Does it work without an internet connection?
- Once the page is loaded, the timer runs entirely in your browser. It will continue working even if you lose your internet connection.