All bank credit cards (including those from China Construction Bank) generally follow the working system from Monday to Friday. However, if there are many people applying for credit cards in a certain period, overtime will also be required on Saturdays and Sundays. You can apply for The approval time for bank credit cards is between 15 working days and 25 working days after the bank receives your application form. If the application is not approved after more than 25 working days, it basically means that it has not been approved, so you only need to submit Application form, then wait patiently for 15-25 days. The bank will give you an approval result.