aaOApi_SetInstanceAttrStrValueExt String Format for Date

Is there a specific format that the string value needs to follow in order for this function to correctly convert it to the required data type when setting Date Data Types?

I have tried several standard Date string formats e.g.(8/11/2023) without success, and was wondering if anyone has use this function successfully to set the Project's Properties attributes Date data types because it is working for the other data types.

Thanks,

Todd