Fullscreen Presentation Countdown Timer
Free fullscreen countdown timer with digits sized to fill a projector or large monitor edge-to-edge. Designed for presentations, lectures, sport breaks, classroom timers, and meeting rotations. Quick presets (5 to 60 minutes) plus precise minutes/seconds custom input. Audible beep on each of the last 10 seconds and a longer tone at zero. After zero the counter goes negative so you can see overshoot.
How to use
1
Pick a duration
Click a preset (5/10/15/20/30/45/60 min) or enter custom minutes + seconds.
2
Start fullscreen
Press the Start button. Browser will request fullscreen — accept.
3
Control during talk
Space pauses, R restarts the same duration. Esc exits.
Big-digit fullscreen countdown — readable from across any conference room
Custom: min sec
Press space to pause/resume in fullscreen mode. R to restart. Esc to exit. Counter goes negative once it passes zero, so you see how much you've overshot.
Phone Remote
Connecting…
Pair your phone
Scan this QR with your phone. Your phone becomes the timer remote — pause, restart, ±30 s, exit from across the room.
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Waiting for phone…
10:00
Published
Updated
