Hi Siegfried,
As Tim suggested, minutesBetween is the solution for your requirement.I am sharing other documentation which explains different functionality that can be achieved using datefuntions.
https://docs.mendix.com/refguide/between-date-function-calls
Use the function minutesBetween:
And add that microflow named ‘Calc_Difference’ as the calculation-microflow of the attribute ‘Difference’:
Perfect solution! Tanks a lot!
Perfect solution. Thanks very much!!