Gather number of months from Date Range?


What I need to do, is to be able to get a list of months, from a date range.

To give an example,

User A has a start date of 1/1 and an end date of 3/1

I need to be able to record “january, february, march” in some fashion to indicate which month names are listed within the range. This could be numbers, letters, shapes I do not care, i just need the field to populate with each month in the range so I can point to it. I need this for tab filters, as well as for data organization as we bill monthly but our users have dynamic date ranges. If anyone knows how to spit something out

Hopefully this makes sense. If I have over thought this and there is an easier solution that solves the problem I am all ears.