Friendly Toolkit
15 Minute Timer
15 minute timer
A countdown timer with an alarm that keeps time in a background tab. Or count down to a date.
Free, private, no sign-up
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Suggest an improvementA timer that keeps going in the background
Pick a quick time or set hours, minutes and seconds, then press Start. The time left is shown in your browser tab too, so you can switch tabs and still see it. The timer counts from a fixed end time, so it stays exact even when your browser slows down background tabs.
Good to know
Will I hear the alarm if the tab is in the background?
Yes, as long as the tab stays open and your device isn't muted. Some phones pause web pages when the screen is off, so keep the screen on for important timers.
Can I count down to a date?
Yes. Choose Countdown to a date, pick the date and time, and see the days, hours, minutes and seconds left.
Does it work offline?
Once the page has loaded, the timer runs entirely in your browser and needs no connection.