Full-Screen Timer
A full-screen timer turns any device into a giant, glanceable countdown clock. Set your time, tap full screen, and the numbers fill the whole display so everyone in the room can read them - No download, no sign-up, no clutter.
Tip: press Space to start or pause, R to reset, F for full screen.
About the Full-Screen Timer
A fullscreen timer blows the countdown up huge so a whole room can read the clock at a glance from far away.
A fullscreen timer fills your whole screen with giant digits. No menus, no clutter - Just big numbers you can read from the back of a room.
Cast it to a TV, projector, or smart board and everyone watches the same countdown at once. That keeps a whole group on the same clock without anyone squinting.
Where a giant countdown shines
Any time a crowd needs to see the time, big glanceable digits help. Here are the spots where fullscreen works best:
| Setting | Why fullscreen helps | Good length |
|---|---|---|
| Classroom | Kids self-pace a task and see time left from any seat | 5-15 min |
| Presentations | Keeps each speaker on time without a tap on the shoulder | 3-10 min |
| Workouts | Read work and rest across the gym floor | 20-60 sec |
| Events and games | Everyone sees the same shot clock or round | 1-5 min |
| Exams and quizzes | Fair warning for the whole room at once | 30-60 min |
Teachers can pair it with a classroom timer for tidy-up time, while coaches lean on an interval timer to flip between work and rest rounds on the big screen.
Tip: Cast or mirror the timer to the biggest screen in the room before you start, so no one blocks the view.
Tip: Dim the lights and the huge digits still read clearly - Great for presentations and dark gyms.
Tip: Set the time first, then go fullscreen, so you never fumble with tiny buttons in front of a crowd.
Why big numbers keep a room on track
Small clocks force people to lean in and check. A fullscreen countdown is glanceable - One look and you know exactly how much time is left.
That shared view builds gentle pressure. A speaker wraps up, students focus, and lifters push through the last seconds because the whole room sees the same numbers ticking down.
It also cuts the constant "how much longer?" questions. A quick 5-minute countdown on the wall answers everyone at once and keeps you hands-free.
How to Use the Full-Screen Timer
- Set your timeEnter any hours, minutes and seconds, or start from a preset duration.
- Press full screenTap the Full-screen button (or press F) and the countdown expands to fill your display.
- Start the countdownHit Start or press Space. The huge on-screen clock counts down and an alarm sounds at zero.
- Exit any timePress Escape or the exit button to drop back out - Your timer keeps running.
Related on timer.now: classroom timer, timers for kids' routines, timeboxing remote meetings and interval timer.
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Best Uses for the Full-Screen Timer
Give the whole class a visible countdown for tests, activities and transitions.
Keep speakers on time with a timer everyone can see from the back of the room.
Read your intervals at a glance from across the gym floor.
A big, clear countdown you can see from anywhere in the room.
Related Online Timers
Full-Screen Timer - FAQ
How do I make the timer full screen?
Does the timer keep running in full screen?
Is the full-screen timer free?
Can I use a fullscreen timer on a TV or projector?
Will the screen stay awake during the countdown?
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