Using the countdown
Choose 1, 5 or 10 minutes, or one hour. Start begins counting down, Pause stops it temporarily, and Reset returns to the initial five minutes. Selecting a preset stops the current countdown.
Keep the page open
This is a simple visual timer. It does not provide a sound alarm or background notification. Browser throttling, a sleeping device or a closed tab can interrupt or delay the countdown.
Leaving or reloading the page resets this timer. Use a dedicated device alarm for anything that must ring reliably.