Bell Timer

Ready

05:00

of 05:00

Minutes

Seconds

The floating timer stays on top of the PowerPoint slideshow and keeps counting as you change slides.
It has its own Start, Pause and Reset buttons. Drag it anywhere, and resize it to make the digits bigger.
For the float with buttons, open the HTML file directly in your browser, not inside the Claude viewer.
In Zoom, share your Screen (not just the PPT window) and tick Share sound so everyone sees it and hears the bell.

Space start / pause