The credit card repayment date is generally around 20---52 days.
For example, if your credit card bill date is the 25th of each month, then the repayment date will be the 15th of each month.
In other words, any purchases made before the 25th of this month must be repaid before the 15th of the next month.
For purchases made after the 25th of this month, repayment can be made before September 15th.
Just look at your billing date and repayment date.