If you don't want to install extra software, you can create your own live clock using a small piece of Visual Basic (VBA) code.
Simplest way to add a live digital clock to each lesson slide? download live digital clock for powerpoint
This is a dedicated add-on that lets you add live clocks, dates, and even world time zones. You can find more info at PresentationPoint . If you don't want to install extra software,
You can also search directly within PowerPoint by going to Insert > Get Add-ins and searching for "Clock" or "Break Time" to find community-vetted tools. 2. The DIY "VBA" Method (No External Downloads) You can find more info at PresentationPoint
A popular free add-in for teachers that includes a built-in timer and live clock feature which can be toggled during the slideshow. Explore features at ClassPoint .
A specialized presentation timer available on the Microsoft Store . It stays "always on top" of your slides and starts automatically when you enter full-screen mode.