in the report footer, (see my initial post) :
Now, to get the GRAND TOTAL TIME, in the ID_User FOOTER, i have a textbox name txtGT_Time with the same code as the Time_Total column, ie:
=Int(Sum([TimeOut]-[TimeIn])) & " day " & Format(Sum([Timeout]-[TimeIn]),"h"" hr ""n"" min ""s"" sec""")
The...