The Non-Business Day list specifies non-operating days for your FI, such as weekends and Federal Reserve holidays. When generating transactions to be sent to your FI, the application considers these non-business days, as well as the category/subcategory Before Non-Business Day setting, and adjusts processing accordingly. You must also take these days into account when entering the effective date for a transaction; you cannot enter a non-business day as the effective date. You cannot add to this list.
Choose Administration | Non-Business Days.