Between 3~5 years. The activation time of a credit card is generally within the validity period of the card, which is usually between 3 and 5 years. That is to say, as long as your credit card has not expired, you can activate it at any time. If it has not been activated after the expiration date, the card will be automatically canceled and you must apply for a new card. However, there are some special circumstances. If you have not activated the card 3 months after applying for the card, the bank’s customer service will call to inquire about the reason. If you make it clear that you have no need to use the card and do not want to activate the card, the bank will directly transfer your credit card to you. It will be canceled, so it is recommended that you activate it within 3 months after verifying the card. In short, if you need a card, activate the card as soon as possible.