PowerPoint helps you record and time a presentation before you present it to an audience.
Rehearse the presentation
-
Select Slide Show > Rehearse Timings.
-
Select Next, click the mouse or press the Right Arrow key to go to the next slide.
-
The time for the current slide is shown to the right of the Pause icon. The time to the right of that is the time for the whole presentation.
-
Select Pause to pause the recording. Select Resume Recording to resume.
-
Select Yes to save the slide timings, or No to discard them.
You can also press Esc to stop the recording and exit the presentation.
View the timings
Select View > Slide Sorter. The amount of time allotted to a slide is shown at the bottom-right of the slide.
Turn off recorded slide timings before you give a presentation
To prevent slides from automatically advancing, use the recorded slide timings as follows:
-
Select Set Up > Slide Show.
-
Clear the Use Timings or Use Rehearsed Timings check box.
To turn the slide timings on again, select Use Timings.
Source: Microsoft