Visual Timer (Classroom Timer)
Choose the minutes or tap a quick pick – the disc shrinks like a clock hand until the time is up. Even children who cannot read a clock yet can see how much time is left.
How it is calculated
How the visual timer works
- Set the time with the Minutes and Seconds fields or tap a quick pick (1 to 60 minutes) – quick picks start straight away.
- The coloured disc shows the time left. It shrinks clockwise from 12 o’clock, like the hand of a clock.
- With a quarter of the time left the disc turns yellow, in the last minute or last 10% red. An alarm sounds at the end.
- With Fullscreen (or the F key) the disc fills the projector, interactive whiteboard or tablet screen.
Why a visual timer?
A shrinking area can be read at a glance, even from the back row and without being able to tell the time. That helps with independent work, group phases, tidy-up time or tests – and at home for brushing teeth or screen time. If the digits distract, hide them with “Show remaining time as digits”.
Honest limits
The timer is not a support programme or therapy material; whether it helps a child only everyday use will tell. The device sound must be on for the alarm, and some phones pause the page when the screen locks. Where the browser supports it, the screen stays on while the timer runs.
Technology and privacy
The remaining time is calculated from the end time on every frame instead of being counted, so it stays correct after switching tabs. The disc is an SVG graphic (arc path as defined in W3C SVG 2), and the alarm is scheduled on the audio clock when you press Start. Settings are part of the page address; nothing is uploaded.
Frequently asked questions
What is a visual timer?
A timer that shows the time left as an area rather than just digits. Here a coloured disc shrinks to zero, so children and groups can see immediately how much time remains.
Can I show the timer on a projector or smartboard?
Yes. Open the page in the classroom computer’s browser and tap “Fullscreen” or press F. The disc adapts to the screen size, and the colours work in light and dark mode.
Is there a visual timer without sound?
Yes, just switch off “Alarm at the end”. The display then simply changes to “Time’s up!”.
Do I need an app for kids?
No. The timer runs in the browser on tablets, phones and computers without sign-up. Saved as a bookmark or on the home screen it is one tap away.
Does a visual timer help with ADHD?
Visual time displays are often used to make time tangible. This tool makes no claim about ADHD; discuss support strategies with professionals.
Sources and legal basis
- W3C: Scalable Vector Graphics (SVG) 2 – Paths
- MDN Web Docs: Fullscreen API
- MDN Web Docs: Screen Wake Lock API
- MDN Web Docs: Web Audio API
As of:
Related tools
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- Lap Counter with Lap TimesOnline lap counter: tap the big button to count laps and see lap time, average and distance. Target laps with an alert, copyable lap list. Free, no app.