Visual Basic - hora del sistema

Como hago para calcular la hora del sistema sin usar la funcion now y time
Diganme como por que hasta hora nose como lo hago

Oye la otra forma de obtener la hora es con API:

Private Declare Sub GetSystemTime Lib "kernel32" (lpSystemTime As SYSTEMTIME)
Private Type SYSTEMTIME
wYear As Integer
wMonth As Integer
wDayOfWeek As Integer
wDay As Integer
wHour As Integer
wMinute As Integer
wSecond As Integer
wMilliseconds As Integer
End Type
Private Sub Form_Load()

Dim SysTime As SYSTEMTIME



GetSystemTime SysTime

MsgBox "The System Date is:" & SysTime.wMonth & "-" & SysTime.wDay & "-" & SysTime.wYear
MsgBox "The System Time is:" & SysTime.wHour & ":" & SysTime.wMinute & ":" & SysTime.wSecond
End Sub

Espero que te sirva
Atte.
Eduardo