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.
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, TimerHub 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.