Classroom Timer
A clean, projector-friendly timer for lessons, stations, transitions and group work.
Sounds
Sounds off
Closing these settings keeps sounds playing. Keep this page open.
Ready.
Keep this tab open for the finish sound. Reliability
Session history
Saved only in this browser: up to 90 days and 1,000 records. Timer time includes breaks and does not measure attention. Restored phases are marked. Older daily counters are not converted into sessions.
No sessions in this period.
| Ended | Tool | Phase | Timer time | Result |
|---|
Classroom race
An optional race with a random winner. Choose the time and participants.
Sounds
Sounds off
Closing these settings keeps sounds playing. Keep this page open.
Ready for a new race.
Reduced motion uses indicators instead of moving figures.
Names and the running race stay in this page only. Reloading or changing language stops the race; settings remain in this browser.
How to use
- Choose a duration for the activity, transition or station.
- Press Start.
- Use fullscreen mode so the class can see the remaining time.
- Reset or add a minute if the activity needs a little more time.
Keyboard controls
Click the tool or an empty area, then press a key. Shortcuts pause while you type.
- Start / Pause Space
- Reset R
- Fullscreen F
Quick reference
| Offline | After one successful visit, this route can reopen from the service-worker cache. Keep the tab or installed app open for sound and live state. |
|---|---|
| Browser limits | Fullscreen needs browser support and a user action. Sound still requires the page or installed app to remain available. |
Questions and answers
Can I show it on a projector?
Does it work if the internet drops?
Is it ad-free?
Will the countdown stay accurate if the browser slows down?
More details and related tools
A teacher timer without the visual noise
The standard classroom timer keeps the screen readable from across the room: large tabular digits, a simple progress sweep and controls that are easy to hit quickly. The optional classroom race opens separately below it; you can use static indicators instead of moving figures.
Use it for warm-ups, centers, independent work, quizzes, group discussions, cleanup, brain breaks and transitions between activities.
Good for
- Group-work blocks.
- Station rotations.
- Cleanup countdowns.
- Quiz or writing sprints.