Classroom Timer

Set a countdown or start a stopwatch for your next classroom activity. Free, no login required, and ready to display to the class.

  • Free to use
  • No login required
  • No AI credits used

Timer settings

Mode

Up to 80 characters. Leave blank to show only the timer.

Countdown duration

Set a duration from 1 second to 180 minutes.

Quick durations

Choosing a duration does not start the timer.

End sound

Play a short sound when the countdown ends.

Time remaining05:00Ready

Refreshing, returning after leaving this page, or changing language resets the timer and its settings.

Start a classroom countdown in three steps.

  1. Set the time

    Enter minutes and seconds, or choose a quick duration. Add an activity name if you need one.

  2. Start when you are ready

    Press Start to begin. Pause for an explanation, then resume when the class is ready.

  3. Show the class

    Choose Present for a focused timer view without navigation or promotional content.

Need to measure elapsed time instead? Select Stopwatch before starting.

Try it in your next lesson.

These are example timings. Adjust them to suit your class and activity.

  • 3-minute warm-up

    Give students a short window to recall a topic or respond to a starter question.

  • 8-minute discussion

    Keep the time visible while pairs or groups share their ideas.

  • 10-minute practice

    Set a period for independent work, with the option to pause or add time.

Classroom timer questions, answered.

Is the classroom timer free? Do I need to log in?

Yes. The classroom timer is free and works without logging in, using AI credits, or creating a lesson plan first.

What is the difference between countdown and stopwatch?

A countdown runs from the time you set down to zero and can play a sound when it ends. A stopwatch counts up from zero until you pause it, with no end time and no sound.

Can I use the timer silently?

Yes. Turn off End sound in the timer settings. When the countdown ends the screen shows “Time’s up” without playing anything.

Can I display the timer to the class?

Yes. Choose Present for a view with only the activity name, the time and the controls. It goes full screen where the browser allows it, and still works as a focused view where it does not.

What happens if I switch browser tabs?

The timer keeps the right time, because it is worked out from the moment it ends rather than counted second by second. The end sound still plays while the browser is running, though a browser that has suspended the tab may play it late or not at all.

Will the end sound play if my device sleeps or the browser closes?

No. A sleeping device or a closed browser cannot play the sound. When you come back the timer shows “Time’s up”, and it does not play a sound that is more than a few seconds late.

Are the activity name, settings, and progress saved?

No. Nothing is stored. Refreshing the page, leaving and coming back, or changing language returns the timer to a five-minute countdown.

Does the timer work without an internet connection?

A timer that is already open keeps running if the connection drops. Opening or refreshing the page still needs a connection.

What countdown durations can I set?

Any length from 1 second to 180 minutes, entered as minutes and seconds. The quick buttons set 1, 3, 5, 10 or 15 minutes.

How do adding time, Reset, and Start again work?

Add 1 minute extends the countdown that is running or paused. Reset stops the timer and returns to the duration you set. Start again begins a new round at that duration, without the minutes added last time.

More classroom tools

  • Random Name Picker

    Paste a class list and draw one name at a time, with or without repeats, and present the result to the class.

    Open the name picker
  • Random Group Generator

    Paste a class list and split it into random groups whose sizes differ by at most one, then present or copy them.

    Open the group generator

Before the next lesson

Plan the activities for your next lesson.

Use Teacher Planner to organize your lesson activities before class begins.