I have built a perpetual calendar within Filemaker. see screenshot below.
Did you use an add on for this or did you just create it in your data base?
I built it from scratch within my database - both the calendar and the daily diary. thanks
Here's a very simple calendar demo in the older .fp7 file format: https://www.dropbox.com/s/e8d03xvwe8vtz85/Calendar.fp7
If you are using FileMaker 12 or newer, use Open from FileMaker's File menu to open the file in order to produce a copy converted to the newer file format.
I am finding this information very helpful.