Function SecondsToHour(Seconds As Integer)
    Dim h
    Dim m
    Dim s
    h = Int(Seconds / 3600)
    m = (Seconds / 60) Mod 60
    s = Seconds Mod 60
    SecondsToTime = Format(h, "00") & ":" & Format(m, "00") & ":" & Format(s, "00")
End Function

Sub a()
MsgBox SecondsToHour(80)
End Sub