Hours : Minutes : Seconds
Free Online Countdown Timer
Set a countdown timer for any duration — up to 99 hours — and get an audio alert the moment it hits zero. Click the time display to edit hours, minutes, and seconds, then press Start. The circular progress ring shows exactly how much time remains at a glance.
Choosing the right countdown length
A countdown works best when the number is small enough to feel urgent and long enough to finish something real. Cooking and lab work have their own fixed numbers, but for everything else the useful ranges are short: two minutes for a stand-up update, five minutes for a warm-up set or a cleanup transition, ten to fifteen minutes for a drill or a timed quiz, and twenty-five minutes for deep work. If a task keeps blowing past its timer, the task is too big and needs to be split, not given more time.
Ways people use this timer every day
- Classrooms: station rotations, timed writing, and five-minute pack-up warnings.
- Coaching: rest intervals between sets, drill blocks, and shot clocks in practice.
- Kitchens: proofing, resting meat, steeping tea, and anything with a hard cutoff.
- Meetings: capping each agenda item so the last topic is not rushed.
- Home: screen-time limits, chore sprints, and medication reminders.
Countdown, stopwatch, or Pomodoro?
Use a countdown when you know the deadline and want the alarm. Use the stopwatch when you do not know how long something takes and want to measure it, with laps for each split. Use the Pomodoro timer when you want the work and break cycle handled for you, and the visual timer when the person watching needs to see time shrink rather than read digits.
Frequently Asked Questions
How do I set the countdown timer?+
Click the time display to edit the hours, minutes, and seconds fields. Tab between fields, then press Start. You can also pause and resume without losing your remaining time.
Will I hear an alarm when it finishes?+
Yes. When the countdown reaches zero, TimerHubs plays a three-tone audio alert generated directly by your browser using the Web Audio API — no external sound file needed.
Can I set a timer for more than an hour?+
Yes. The hours field supports up to 99 hours, making it suitable for long cooking timers, study sessions, or any extended countdown.
Does the timer count down in the browser tab?+
Yes. Once started, the remaining time is shown in the browser tab title so you can track it without keeping the tab in focus.