FOR YOUR CLASSROOM
Classroom & exam timer,
clear in fullscreen.
For classes, exams, presentations, and exercises. Large numbers make the remaining time clear so teachers and students can follow the same schedule.
Three checks before class
- Set the time. Open the 50-minute preset, or click the large numbers to change hours, minutes, and seconds. Name and save timers you use often.
- Check the sound. Preview the end alert and check the volume. Enable the five-minute warning for an exam if needed.
- Use the big screen. Connect a projector and press the Fullscreen button or F. You can also start with Space.
Match the duration to the activity
Each link loads that duration. Press Start when you are ready.
| Activity | Example setting | How to use it |
|---|---|---|
| Class or exam | Open a 50-minute timer | Start with the class and display the remaining time for everyone. |
| Exercises | Open a 10-minute timer | Show when individual work will end and discussion will begin. |
| Group presentations | Open a 3-minute timer | Reset for each group to give everyone the same presentation time. |
| Break | Open a 5-minute timer | Show when the next activity will start. |
Frequently asked questions
Can students see the same timer on their devices?
Use Share to send a link with the same settings. Each device starts manually, and running timers are not synchronized in real time. For one shared classroom countdown, display a single screen for everyone.
Will the exam alert sound if the screen is off?
Screen lock, sleep mode, and mobile background restrictions can make alerts late or inaudible. Keep the screen on and test before use. Use a separate clock for precise exam supervision.
How do I leave fullscreen?
Press Esc or use the Exit fullscreen button. Fullscreen support varies by browser and device.
Be ready for the next class
Alert settings and saved timers stay in this browser. For controls, see the User guide; for alternating focus sessions and breaks, see the focus & break timer for more information.