If SAFE says 90 days, it means 90 days from the date of issuance of the import foreign exchange payment declaration form, and it will be added to the excel form. The date of issuance of the customs declaration is at the bottom of the customs declaration. If the supplier asks for a payment date, it depends on your payment terms. Some are 90 days after the invoice date, some are 90 days after leaving the ship, and some are 90 days after arrival. Anything is possible