Credit cards are divided into billing date and repayment date, and those collected before the billing date (domestic consumption is basically collected at that time, and foreign consumption of US dollars or local currency is sometimes delayed for several days) will be recorded in this month's bill and returned on the repayment date. For example, if your billing date is the 8th and the repayment date is 2 1, then the money you spent on the 9th of this month will be repaid on the repayment date of next month, because it is not included in this month's bill.