Thank you for the response.
At least now I know I am not doing anything wrong.
I am trying to implement this feature using three separate numeric fields (year, month and day) and a hidden calculation field (year*366+month*31+day) and simple comparision against a given date (in this specific case I need people who will not turn 18 before a given date to supply their’s legal guardians contact information), but variable number of days per month is giving me a headache – preventing people from selecting february 31th in example… using calculated values for numeric range if not possible as far as I’ve seen.
It would be great if this would be implemented in the future, seems logical it might be needed from time to time.
Thanks again,
Michal