Classroom timer for teachers
Counts down 5 min, then beeps.
Space start/pause R reset Esc stop
Settings
Counts down 5 min, then beeps.
01
What this one is for
A classroom timer needs to be readable from the back row and free of anything that will embarrass you on a projector. This one goes fullscreen with the digits filling the screen, and there are no ads, no autoplaying video and no signup wall, which is the whole reason to use it rather than a search-result timer in front of thirty children.
The lengths that get used most are short. Two minutes for a pack-up or a transition between activities, five for a starter task or a think-pair-share, ten for silent reading or independent work, fifteen for a longer task or a test section. Set the number once and it is remembered next time you open the page, so the timer you use every lesson is already there.
Press Space to start and pause, R to reset, and Esc to leave fullscreen when you are done. On a laptop with the browser behind a slide deck, the remaining time shows in the tab title, so you can glance at it without switching windows. It reads the clock rather than counting frames, so a lesson that runs over a screen sleep still has the right number on it.
02
Good for
- Transitions and pack-up time
- Timed test or exam sections
- Silent reading and independent work
- Group tasks and think-pair-share
- Fullscreen on a projector or interactive whiteboard
03
How it runs
Counts down 5 min, then beeps. Press Start, or hit Space. The digits turn green while a work block runs and grey on rest.
Sound is on by default: a rising pair for work, a falling pair for rest, a tick for the last three seconds and a three-note finish. Mute with the speaker button. The screen stays on while the timer runs and the tab title shows the time left.
Change anything in Settings under the timer. The last setup you used on this page is remembered in your browser.
Questions people ask
- Are there ads or anything I need to block?
- No ads, no third-party video, no account. That is deliberate, because a timer on a projector is in front of a whole class.
- Can I make it fill the screen?
- Yes. Use the fullscreen button and the digits scale to the display. Esc leaves fullscreen.
- Does it work on a school network with no internet in the room?
- After the first visit it runs offline, because everything is in the browser. There is nothing to call home to.
- Can the class see the time without me switching windows?
- On a projector, fullscreen is the answer. If the browser is behind a slide deck on your own laptop, the tab title carries the countdown.