in each bill, the closing date of recorded credit card transactions is called "billing date". The due repayment date is generally around the 18th day after the bill date (whichever is shown in the bill). 3 natural days after the due repayment date is the repayment grace period.
billing dates of different cardholders may be different from each other. For example, if the billing date is 25th of each month, all transactions recorded in each billing period are from 26th of last month to 25th of this month, and the corresponding final repayment date is 13th of the following month. The consumption on the 25th is generally recorded on 26th, and will be included in the next bill.