Use Dates as written language in Shortcuts
The How Long Ago/Until format is useful for gathering a simple description of how long ago or how far into the future a date is relative to now. The result is based on the most significant component of the time period, producing results like
43 minutes ago,
19 hours from now,
5 days from now, or
3 months ago.
Similarly, the Relative date format allows you to choose from helpful options such as Yesterday, Today, and Tomorrow. These options are relative to the current date and time when you run the shortcut.