Of cource it will return space. It is my mistake. Recover function to previous version., There is no need to change it and use it:
thisform.TotalTxt.Value
=thisform.AddTime(thisform.AddTime(thisform.Text1.Value, thisform.Text2.Value), thisform.Text3.Value)
Against Stupidity the Gods themselves Contend in Vain - Johann Christoph Friedrich von Schiller
The only thing normal about database guys is their tables.