Space = Start/Pause · R = Reset · F = Fullscreen
Quick Presets
Custom Time
Appearance
About Fullscreen Timer
The Fullscreen Timer is a large-display countdown timer designed for visibility across a room. Whether you're running a classroom activity, timing a presentation segment, managing a meeting, or timing workout intervals, the big clock face ensures everyone can see the remaining time at a glance.
Click the Fullscreen button or press F to expand the timer to fill your entire screen. The timer continues running in fullscreen mode, and you can start, pause, and reset using keyboard shortcuts so you never need to look away from your content.
Common Use Cases
Classroom & Teaching
Display a large timer on the projector for timed tests, group activities, or transitions between lessons. Students and teachers can see the countdown without interrupting the flow of class.
Presentations & Talks
Keep your talk on schedule with a visible countdown. Use keyboard shortcuts to start/pause without leaving your presentation view.
Meetings & Workshops
Time breakout sessions, discussions, or activities during workshops and meetings. The fullscreen display on a shared screen keeps everyone aware of the remaining time.
Fitness & Workouts
Use the fullscreen timer on a tablet or TV to track rest periods and exercise intervals. Presets for common durations make setup fast between sets.
Cooking & Kitchen
Mount a tablet and run the fullscreen timer to track cooking times from across the kitchen without squinting at a small display.
Games & Quizzes
Add time pressure to trivia nights, escape rooms, or board games by displaying a large countdown visible to all players.
Frequently Asked Questions
How do I enter fullscreen mode?
Click the Fullscreen button in the timer display area, or press the F key on your keyboard. To exit fullscreen, press Escape or click the Exit button.
What keyboard shortcuts are available?
Space — Start or pause the timer.
R — Reset the timer to the set duration.
F — Toggle fullscreen mode.
Escape — Exit fullscreen.
Can I customize the timer appearance?
Yes. Use the Appearance section below the timer to choose a background color and text color. Dark backgrounds like black or dark navy work best for large-screen visibility in bright rooms.
Does the timer play a sound when it ends?
Yes. A short audio alert plays when the countdown reaches zero, and the display flashes briefly to draw attention. Make sure your device volume is turned up.
Does it work on mobile and tablets?
Yes. The timer is fully responsive and works on all devices. On mobile, tap the Fullscreen button to expand the timer to fill the entire screen for easy viewing.
Can I set a custom duration?
Yes. Use the Quick Presets for common durations (1 minute to 2 hours), or enter exact hours, minutes, and seconds in the Custom Time section and click Set.