This free online classroom timer makes time limits clear for students. Choose a one-, three-, five-, ten-, or fifteen-minute preset, or enter a custom time up to 60 minutes. The large countdown is useful on smartboards and classroom projectors.
Classroom Countdown Timer
Display a big, easy-to-read countdown for quizzes, group work, silent reading, tidy-up time, and classroom transitions.
Ready to start
Choose a time, then press Start.
This timer runs locally in your browser. Keep the tab open during the activity. There is no login, alarm sound, or saved student data.
How to use the classroom timer
- Select a countdown preset or choose Custom to enter the number of minutes.
- Select Start. The timer counts down in minutes and seconds.
- Pause and resume if students need extra instructions. Choose +1 minute if your activity needs more time.
- When time reaches zero, the display announces that time is up. Select Reset to prepare the next round.
Classroom activities that benefit from a timer
Use a short timer for quick writes, brain breaks, or tidy-up challenges. Longer countdowns work well for group discussions, practice stations, silent reading, and independent work. Explain the expectations before starting, and adjust the duration for different learning needs.
Related classroom activities
For timed team activities, combine this timer with the Team Scoreboard or Classroom Buzzer.
Frequently asked questions
Does this timer make a sound?
No. The timer provides a visual time-up message, which can be useful in quiet classrooms.
Will the countdown continue if I close the tab?
No. Keep the page open during your activity. Background tabs can also update less frequently, so keep the timer visible when accurate timing matters.
Can I set a different countdown for each activity?
Yes. Choose a duration that fits the task before starting the timer. Check the setting again when switching to a different activity.
Can I show the countdown on a projector?
Yes. Open the timer on the classroom display so students can see the remaining time. Keep that browser tab visible for the most reliable updates.