A countdown timer for any task
The online timer counts down from any length you choose – from a few seconds up to 99 hours – and plays a sound when it reaches zero. The remaining time is shown in large scoreboard digits, in the browser tab title, and as a progress bar, so you can glance at it from across the room.
Use it for plank holds, rest between sets, a 25-minute focus block, tea, eggs or a presentation slot. For repeating work and rest periods, switch to the interval timer.
How to use the timer
- Enter hours, minutes and seconds, or tap a preset such as 5 min or 30 min – presets start right away.
- Optionally pick a sound and add a label so you remember what the timer is for.
- Press Start. Use Pause and Resume whenever you need.
- At zero the alarm sounds. Press Stop to finish or Snooze to add a few more minutes.
Handy extras
- Press the full-screen button for a distraction-free display – great on a TV or a gym screen.
- Keyboard: Space starts or pauses, R resets.
- Copy link creates a URL with your duration and label. Bookmark it, or send it to your team so everyone starts the same timer.
Frequently asked questions
Does the timer keep running in a background tab?
Yes. It calculates the remaining time from the real clock, so it stays accurate even when the tab is hidden.
Can I run two timers at once?
Open the timer in a second tab. Each tab runs its own timer with its own sound.
What is the longest time I can set?
Up to 99 hours, 59 minutes and 59 seconds.
How do I make the alarm stop by itself?
Open the settings (gear icon) and turn off "Keep ringing until stopped". The sound then ends after one minute.