Choose a time
Pick a classroom preset or enter exact minutes and seconds. Add a short activity label so everyone knows what the countdown is for.
FREE CLASSROOM TOOL
Free Classroom Timer for Teachers
Start a clear countdown for classwork, transitions, quizzes, presentations, or brain breaks. No account, ads, or download.
Free
No sign-up
No ads
Runs in your browser
- Fullscreen display for projectors and smartboards
- Quick presets plus exact minutes and seconds
- Optional tested end sound, off by default
Class activity
Ends at the shown time when started.
TIME REMAINING
Ready to begin
Ready for 5 minutes.
Keyboard: Space starts or pauses, F opens full screen, and R resets.
Your timer settings stay in this browser. Supported devices stay awake while the timer runs.
SIMPLE AND PROJECTOR-READY
How to use the classroom timer
Put it on the board
Select Full screen or press F for a clean projector view. The end time and progress ring help students pace themselves.
Start the class
Start, pause, reset, or add one minute without rebuilding the timer. Turn on and test the optional end sound before students begin.
Useful classroom countdowns
30 seconds to 3 minutes
Use short timers for lining up, partner turns, collecting materials, quick reflection, or cleanup.
5 to 15 minutes
Keep warm-ups, exit tickets, discussions, presentations, and station changes moving.
20 to 60 minutes
Give independent work, reading, writing, quizzes, and exams one clear deadline everyone can see.
Classroom Timer questions
Is this classroom timer free?
Yes. It is free to use, has no ads, and does not require an account or download.
Can I use it on a projector or smartboard?
Yes. Select Full screen or press F. The high-contrast timer expands to fill the display, and Escape returns to the setup view.
Will the timer stay accurate in another tab?
Yes. The countdown uses the planned finish time instead of adding up animation frames, so it corrects itself after browser throttling.
Does it make a sound?
Sound is optional and off by default. Turn it on and select Test sound before class to check the device volume.