The credit card repayment date of CCB is 20 days after the bill date. The billing date of each month is fixed, but the repayment date of each month is not fixed because of the size of the month.
If the billing date of each month is 22nd and 22nd April, you can enjoy a maximum interest-free period of 50 days by swiping your card on 23rd April. Credit card spending from April 23rd to May 22nd, the repayment date is June 1 1, which can be repaid before June 1 1, and no later than June1. If you spend money by credit card on April 22nd of the bill date, you can enjoy the shortest interest-free period, only 20 days, because you have to repay before May 12. If you spend money by credit card from March 23rd to April 22nd, you have to repay before May 12 at the latest.