Sub DatePlusHeure()
Dim derl As Long
Dim i As Long
derl = Sheets("releve_erreur").Range("A" & Rows.Count).End(xlUp).Row
tablo1 = Sheets("releve_erreur").Range("A2:F" & derl)
For i = 1 To UBound(tablo1)
tablo1(i, 6) = Fix(tablo1(i, 1)) + tablo1(i, 2) - Fix(tablo1(i, 2))
Next i
Sheets("releve_erreur").Range("A2:F" & derl).Value = tablo1
End Sub