How to use the classroom timer
- Type the activity name so students know what the time is for.
- Choose a preset or a custom time, then press Start.
- Click the fullscreen button so the digits fill the projector screen. Press Space to pause, R to reset.
Online Timer
Product of Stuon
Classroom Timer
A big, clear countdown to project on the board for any class activity.
05:00
Pick a time, then press Start
Space start / pause · R reset
Tips for timing class activities
- Announce the time before you start and give a one-minute warning out loud.
- Short, visible countdowns (3–10 minutes) help transitions and group work stay on track.
- For younger students, the visual timer shows time as a shrinking color disc, and the cleanup timer makes tidying a game.
Frequently asked questions
How do I make the timer full screen?
Click the square fullscreen icon in the top-right corner of the timer. Press Esc or click it again to exit.
Will the timer keep going if I switch to my slides?
Yes. It runs on the real clock, so it stays accurate in a background tab or window, and the chime still plays when time is up.
Is this classroom timer free?
Yes, it is completely free, needs no account, and works in any modern browser on a computer, tablet, or interactive whiteboard.
Study smarter with Stuon
Take your focus further.
Turn what you learn into lasting knowledge with active recall, spaced repetition, and simple study tracking.
Continue on Stuon