How to create searchable-by-date filters

Ok, the whole scripting language is a bit of a mystery to me, so if anyone with more knowledge of it than me could help me figure out how to do this, I'd be really grateful.

I have a database with 4 fields and date is one of them. I've already set up the automatic filters, which let me limit the db by the other three fields, but how would I go about limiting it by date? Like, for instance, if I wanted to see

1) all the records from September, for example
2) all the records from September 1-15 (or any other date range I choose)
3) all the records from September, limited by field 2, choice 1, etc.

Please help me figure out how to set this up! Like I said, the scripting language is WAY over my head, and I figure that's how you might do this...