Frequently Asked Questions
Common questions about the free online countdown timer — how it works, alarm, modes, and more.
How does the countdown timer work?
Set a duration in hours, minutes, and seconds (or choose a future date and time in Target Date mode), then press Start. A large display counts down to zero, then sounds an alarm. You can pause, resume, or reset at any time.
Is the countdown timer free to use?
Completely free — no sign-up, no downloads, no limits. Use it as many times as you like on any device.
Can I count down to a specific date and time?
Yes. Switch to Target Date mode, pick any future date and time, and the timer counts down to that moment — showing days remaining when the target is more than 24 hours away.
Does the timer have an alarm sound?
Yes, an audio alarm plays when the timer reaches zero. It uses the Web Audio API, so it works even if the tab is in the background — as long as the browser tab remains open.
Will the timer keep running if I switch tabs or lock my screen?
The countdown engine keeps accurate time regardless of tab focus. On supported browsers, a screen wake lock keeps the display on while the timer runs. The alarm still fires when the timer ends.
Can I pause and resume the timer?
Yes. Press Pause at any time to freeze the countdown, then Resume to continue exactly where it left off. The timer picks up from the remaining time without any drift.
What are the quick presets for?
The preset buttons (1, 3, 5, 10, 30, 60 minutes) let you set common countdown durations in one tap — useful for cooking, studying, or taking a break without typing a value each time.
Can I label the timer or set it to repeat?
Yes. Add a label (like "Tea" or "Meeting") to remind yourself what the timer is for. Enable Repeat and the timer automatically restarts when it finishes — useful for interval training or repeated work sessions.
Is any data stored or sent anywhere?
No. Everything runs entirely in your browser. Nothing is stored, sent to a server, or logged anywhere. Close the tab and all state is gone.
Does the countdown timer work on mobile?
Yes. The timer is fully responsive with a large legible display and big tap targets. It works on phones, tablets, and desktops without any installation.
Ready to start a timer?
Free, no sign-up required. Works on any device, instantly.
Open the Countdown Timer