Thank you, it´s working. But I have a question about this because I´ve tried to do this with two different fields that I have also in my master calendar.
MasterCalendar: I have a date field that is %Date and a timestamp field that is [Month Year], so if I try the previous sentence and I name that as %Date, then I get a date field, but if I name as [Month Year], I get a timestamp. That´s because of my types of data in my Master Calendar and QlikView force to be that fields the same type ??