Classroom Timer
A free online classroom timer for teachers — a clear visual countdown with optional music and a fullscreen present mode built for your projector. Set 5, 10, or 20 minutes in one click.
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A reliable classroom timer is one of the simplest ways to keep a lesson moving. Whether you are running a five-minute warm-up, a timed quiz, a group activity, or a transition between stations, a visible countdown sets a calm, shared expectation — students can see exactly how long is left without you repeating “two more minutes.” This online classroom timer is free, works in any browser, and is designed to be read from the back of the room.
A Visual Timer Students Understand at a Glance
The countdown is built around a large visual timer ring that shrinks as time runs out, so even young learners get a wordless sense of how much time remains. The colour shifts as you go — green while there is plenty of time, amber as it gets close, and red when time is up — making it an effective classroom countdown timer for tests, tidy-up time, and focused independent work.
Clear visual countdown
A big colour-changing ring and digits readable from the back of the room — a true visual timer for the classroom.
Fullscreen present mode
One click fills your projector or interactive whiteboard with a giant, high-contrast classroom screen timer.
Music & end chime
Play calm background music while it runs, with a gentle chime when time is up — a fun classroom timer with music.
One-click presets
Start common lengths instantly, or type any custom time. No fiddly setup before the activity begins.
Popular Timer Lengths — Start in One Tap
Jump straight to the lengths teachers use most. Each preset starts the visual countdown immediately:
10 minute classroom timer
The most-used length of the day. A 10 minute classroom timer fits a bell-ringer, a page of independent practice, a tidy-up, or one rotation of station work. Tap the 10 minute preset and the ring starts counting down straight away — set the classroom timer to 10 minutes and put it on the projector so nobody has to ask how long is left.
5, 15, 20 and 30 minute timers
Every common lesson length is one tap away:
- 1 and 2 minutes — quick transitions, packing away, moving to the carpet.
- 5 minute timer — warm-ups, think-pair-share, exit tickets.
- 15 minute timer — silent reading, extended writing, a station rotation.
- 20 minute timer — group tasks, practical work, assessment sections.
- 30 minute timer — tests, sustained project work, mock exam sections.
Need something in between? Type any custom time and the countdown behaves exactly the same.
A Giant Timer for Your Projector
Press present mode and the countdown fills the whole screen. On an interactive whiteboard this becomes a giant classroom timer — a huge, high-contrast ring and digits that a student at the very back can read without squinting. If you have been looking for a large timer for the classroom that does not need an app, a login, or a physical device on your desk, this is it: one browser tab, permanently ready.
Because it responds to taps and clicks on the board, it also works as an interactive classroom timer — a student can start, pause, or reset it as part of their job for the day.
How to Use the Classroom Timer
1. Pick a length
Tap a preset (5, 10, 20 minutes) or type your own time for the activity.
2. Go fullscreen
Switch on present mode so the countdown fills your projector or whiteboard.
3. Press start
The visual ring counts down and changes colour as time runs out.
4. Hear the chime
A gentle sound signals time is up — no need to watch the screen.
Great for Every Part of the Lesson
Teachers reach for an online timer for the classroom all day long: warm-ups and bell-ringers, timed writing, math fact practice, brain breaks, silent reading, group rotations and station work, exit tickets, and calm, predictable transitions. Because it is free and needs no sign-up, you can keep it open in a browser tab and start it in a second whenever you need it.
Frequently asked questions
Is this classroom timer free?
Yes. The classroom timer is completely free to use online — no download, no sign-up, and no credit card required. Just set the minutes and press start.
Does the classroom timer work on a projector or interactive whiteboard?
Yes. It has a fullscreen present mode with a large, high-contrast countdown and a colour-changing ring — green while running, amber when time is nearly up, and red when it finishes — so the whole class can read it clearly from anywhere in the room.
How do I set a 10 minute classroom timer?
Tap the 10 minute preset and the countdown starts immediately. The same one-click presets cover 1, 2, 5, 10, 15, 20, and 30 minutes, or you can type any custom length you need for the activity.
Does the classroom timer play music or a sound when time is up?
Yes. You can run calm background music while the timer counts down, and a gentle chime plays when it reaches zero so students know the activity has ended — no need to watch the screen.
Is it a visual timer that students can understand at a glance?
Yes. The visual countdown ring shrinks as time runs out, giving even young students a clear, wordless sense of how much time is left — ideal for transitions, tests, and timed tasks.
Start your classroom timer now
Free, projector-ready, and saved with the rest of your classroom toolkit. No sign-up needed to start.
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