Well, Maybe not so perfectly! 
the search criteria:
dateentered = df1+'...' + df2+'|MM-dd-yyyy hh:mm:ss'
yields the following value:
03-17-2004 12:00:00...03-18-2004 11:59:59|MM-dd-yyyy hh:mm:ss
when viewed in the de-buger
the search does not show any entries entered after noon today.
I'm using the OO:OO:OO 23:59:59 values to set the time portion of the fields, but how do I specify that I mean a 24 hour clock instead of AM and PM?