Classroom Timer

A large, classroom-visible countdown with quick presets, a progress ring, alarm sound, and full-screen mode.

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GapFiller

Time your lessons inside GapFiller

Plan activities, set durations, and track time across your lessons — all in one workspace.

Why use a classroom timer?

Time-boxing classroom activities — giving students a fixed window to brainstorm, discuss, or write — improves focus and pacing. A visible countdown lets everyone see how much time remains, reducing 'how much longer?' questions and keeping transitions smooth.

This free timer is designed for the classroom: the display is large enough to read from the back of the room, the progress ring gives an at-a-glance sense of elapsed time, and the alarm sounds automatically when time is up. Go full-screen on a projector for maximum visibility.

Quick example

Set the timer to 5 minutes for a warm-up writing task. The progress ring shrinks as time passes, turning orange in the last 10 seconds. When it hits zero, a triple-beep alarm plays. Reset and set 15 minutes for the main activity.

Tip: use the Pomodoro timer variant for 25-minute focus sessions with structured breaks.

Frequently asked questions

Related timer tools

Go further with GapFiller

Free tools solve one job. A personal teaching workspace keeps lessons, materials and plans together across schools.