While its a feature request for calculation fields: â Allow usage of date field end date in calculation fields I was told (or think I was told) its available in automations.
Thatâs only partly true. Its available for filters in automation (see âgĂźltig / Startâ and âgĂźltig / Endâ):

its not available in search:

I donât even know, which date will be used for the search operation.