What is a lecture timer?

A lecture timer helps time lessons, study sessions, presentations, and classroom activities in the browser.

Can teachers use it for free?

Yes. It is free to use online with no download required.

Yes. Open the page in a browser and display it on a projector or classroom screen.

Preset countdown

A simple online timer for lectures, lessons, talks, and training blocks.

Preset online countdown with pause, reset, and quick restart.

Ready to run

00:00:00

Ready to start.

Timer sound

Hours

Minutes

Seconds

Related timer pages

This page loads the timer with 0 hours, 45 minutes, and 0 seconds pre-filled so you can start it immediately.

Yes. The fields stay editable after the page loads.

Timer FAQ

Does this timer work in background tabs?

Yes. The timer keeps counting in your browser and will trigger its alarm when it ends.

Does the timer play sound when finished?

Yes. The timer plays an alarm sound when the countdown reaches zero.

Can I use this timer on mobile?

Yes. This online timer works on mobile phones, tablets, and desktop browsers.

Do I need to download anything?

No. It runs directly in your browser with no download required.