5th, 7th, 1th, etc. The billing date of Ping An Bank is on the 5th, 7th, 1th, 11th, 15th, 17th, 2th, 22nd and 25th of each month, and the cardholder can choose one of these dates as the repayment date. It should be noted that Ping An Bank's credit card bill can be adjusted, but it can only be applied for adjustment once a year.