forget about the CurrTime.
Make the Function a Sub and run it.
--
HTH,
Gary Brown

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"qaf" wrote:

I want to perform calculations at timed intervals. I wrote the
following macro:

Public Function CalcNow(CurTime As Date) As Boolean
Static bInitialized As Boolean
Static StartTime As Date, EndTime As Date
Dim TimeDiff As Double

If Not bInitialized Then
StartTime = Now()
EndTime = Now()
bInitialized = True
End If
EndTime = Now()
TimeDiff = (EndTime - StartTime) * 86400
If TimeDiff 5 Then
Application.Calculate
StartTime = Now()
End If
End Function

The current time is in cell A1 and I pass that value to trigger the
running of the function every second - BUT since I am in manual
calculation mode, cell A1 does not update - UGH!!

Any suggestions are appreciated.