Look what I just found!!!
=DATEDIF([In-Progress Time],[Closed time]-(MOD([In-Progress Time],1)>MOD([Closed time],1)),"d")&" days, "&TEXT(MOD([Closed time]-[In-Progress Time],1),"hh "" hrs, "" mm "" mins""")
=DATEDIF([In-Progress Time],[Closed time]-(MOD([In-Progress Time],1)>MOD([Closed time],1)),"d")&" days, "&TEXT(MOD([Closed time]-[In-Progress Time],1),"hh "" hrs, "" mm "" mins""")