The difference is definition and spacing.

1. Definition: The billing date refers to the date when the bill is generated for the current consumption. The repayment date is the last repayment date for the previous month’s consumption. On this day, the credit card limit used in the previous month needs to be paid off. If not, Paying off the balance on the final payment date will accrue interest or liquidated damages and affect personal credit.

2. Interval: There is a certain interval between the billing date and the repayment date. This interval depends on the bank's regulations. Most banks support the repayment of the minimum repayment amount. Repay the minimum repayment amount. The amount will not affect your personal credit score, but interest or liquidated damages will still accrue.