1 1 day debit card consumption, 12 day bill, the final repayment date on the 5th of the following month.
Every month 13 to next month 12 is a bill consumption cycle, and then the 5th of next month is the final repayment date.
12 (accounting day) consumption enjoys a minimum interest-free period of 25 days.
13 (the day after the billing date) enjoys the longest interest-free period of 56 days.