Use the Date action in either of the following ways:
Open your Outlook calendar to the specified date
Create a meeting appointment in Outlook on the specified date
To do this, a full date (including month, day, and year) must be specified in an Excel cell or on a PowerPoint slide. The format of the date can be long, such as January 22, 2021, or short such as 1/22/21. And you must also have Outlook set up on your computer.
With the full date in the document, you just right click it. Then, on the pop-up menu that appears, you select:
Additional Actions > ... (in PowerPoint)
Additional Cell Actions > ... (in Excel)