Credit cards have two major uses: credit card consumption and cash withdrawal. The daily interest rate of credit card consumption is 0.05%, with the shortest interest-free period of 20 days and the longest interest-free period of 50 days; There is no interest-free period for withdrawal, and interest will start to accrue from the date of withdrawal, with a daily interest rate of 0.05% and a handling fee.

To answer your question, I need to know the date of your credit card bill. Suppose you use a credit card to spend money on September 20, and use the following examples to illustrate:

The final repayment date of CCB's credit card is the 20th day after the bill date, and full repayment before the final repayment date does not bear interest. Suppose the billing date of the credit card is 26th (fixed), that is to say

The bill was generated on September 26th and recorded the transactions from August 27th to September 26th. The final repayment date is the 20th day after September 26th, namely 10. 16.

Generate a bill 10.26, and record the transactions during September 27th-10.26. The final repayment date is the 20th day after 10.26, that is,1.15.

And so on.

Obviously, the interest-free period of consumption on 9.26 on the billing date is the shortest, which is 20 days (9.26, 10. 16), and the interest-free period of consumption on 9.27 on the first day after the billing date is the longest, which is 50 days (9.27,1kloc-0/5). It should be noted that credit card consumption has an interest-free period, and cash withdrawal has no interest-free period.