How Can I Add/Subtract One Day from Hijri Calendar Using VBA

Hello,

I can Adjust Hijri Calendar (Add/Subtract one or two days) in Window by Changing the registry key using the following VBA Code

Sub HijriAdjustmentDate()

    Dim wsh As Object
    Set wsh = CreateObject("WScript.Shell")
    
    wsh.RegWrite "HKEY_USERS\S-1-5-21-4059124821-1674896164-3570628022-1001\Control Panel\International\AddHijriDate", "AddHijriDate+2", "REG_SZ"
    Set wsh = Nothing

End Sub

But this doesn't affects Hijri Dates in Excel.

How Can I Adjust The Hijri Calendar days in Excel using VBA?

Hint:
About : AddHijriDate Using Registry key modificaition
https://learn.microsoft.com/en-us/wi...s/addhijridate

I Found this article about Hijri Date Adjustment
https://learn.microsoft.com/en-us/do...ijriadjustment

How Can apply this / or something like this using excel vba?