- First, Select the slide
- Select the Animations tab
- Now, In the Transition to This Slide group locate the Advance Slide section
- It now shows two options; On Mouse Click and the Automatically After
- Enter the desired time for the selected slide in the Automatically After option
- Select the next slide and again choose the desired time
- Click on Apply To All If you want to apply the same timing to all the slides
See the image: