CleanPresent calculates the deadline a bank will actually read

Field notes

The calculator compares two dates: the shipment date plus the credit’s stated presentation period, and the credit’s expiry date. It uses 21 days when the credit is silent, identifies which date controlled, and displays the uncapped result so the difference is visible. The page also describes reminders tied to each company’s local clock, English and Turkish reports, and document generation from recorded credit and shipment data. It explicitly excludes the banking-day rule in UCP 600 article 29.