15 Minute Timer
Fifteen-minute countdown for break-time, mid-length talks, and structured study blocks.
A 15 minute timer sits at the middle of the productivity-timer spectrum — long enough for a meaningful focused-work block (a TED-Ed video, a quick study session, a coffee break, a structured break in a long meeting) but short enough to keep you actively aware of the countdown.
This tool gives you a clean, in-browser 15-minute countdown that's ready to start the moment you land. No sign-up required, no notifications interrupting, no slow ads. Hit Start, hit Fullscreen if you want the timer on stage, and the countdown runs. Customize the color theme for the room (white-on-black for dim conference rooms, black-on-white for projectors, yellow-on-black for accessibility), pick a font style (mono digital or humanist), and add interim alerts at meaningful breakpoints.
Where a 15-minute timer commonly shows up: TED-style short talks (the 18-minute TED format minus Q&A); structured break blocks in workshops and conferences (the "15-minute coffee break"); HIIT workouts with varied 15-minute interval structures; structured study sessions — the Pomodoro-adjacent "15+5" format; online dating or speed-meeting rounds with strict 15-minute slots; kids' practice timers for instruments or sports drills.
Add interim beeps at 10:00 and 5:00 to break the countdown into thirds without checking the screen — useful when you're presenting and can't easily glance at the timer. The last-10-seconds tick is on by default; turn it off in the settings if you're in a quiet environment.
Related variants
Same tool, configured for a related use case.
Frequently asked questions
Is the 15 minute timer accurate?
Yes — accurate to within a fraction of a second over a 15-minute span. We use a wall-clock-based countdown rather than a tick-counter, so even if the browser tab is backgrounded (which modern browsers throttle), the timer reports the correct remaining time when you return to the tab. Total drift over 15 minutes is typically under 100ms on a modern device.
Can I adjust the 15 minute timer to a different duration?
Yes — the configuration screen lets you set any duration from one second to several hours. The /15-minute-timer/ URL just pre-fills 15 minutes as the starting point because that's what you searched for. After landing you can change to any other duration without leaving the page.
Does the timer beep when it finishes?
Yes — a clear single beep when the timer reaches zero, and (by default) a one-per-second tick for the last ten seconds so you get a clear audible countdown. Both can be disabled in the settings if you need a silent timer for a recording or a quiet room.
Will the timer work on a tablet or phone?
Yes — the timer runs in any modern browser including mobile Safari, Chrome for Android, and Edge on Windows tablets. Fullscreen mode works on tablets and most phones. On smaller phone screens the countdown digits are still legible from across a room when fullscreen is engaged.
Can I run this on a smart TV or large display?
Yes — most smart TVs have a built-in browser that supports the timer. Open the URL on the TV's browser, hit Start, then Fullscreen. The high-contrast color themes ensure the timer is readable from typical TV viewing distances. We've had users use this exact setup for classroom timers projected on a TV at the front of the room.