If you select the Date and Time checkbox, you will be given two options: Update automatically and Fixed. The first option available is Date and Time.A dialog box will appear, as shown in the screenshot below.First, you need to access the INSERT tab and click on the Header & Footer button.
However, be careful not to spoil your presentation with too much information. This information will typically include the name of the presenters, their affiliation, and the presentation title, slide number, and date, but other information can be added as well. PowerPoint allows you to create headers and footers, that is, information that appears at the top and bottom of all slides. How to Insert Headers and Footers in PowerPoint
