1. Credit card: There is the word "expiration date" on the bottom of the front of the card, and the year number next to the expiration date is the expiration date of the card. For example, 0 1/20 means 1 month valid until 2020.

2. Debit card: Now the new debit card has an expiration date and is also under the card. For example, 05/24 is valid until May 2024. The date below the old debit card is the card issuing time, for example, 04/06, so adding 10, 04/06 to the card issuing date means that it is valid until 20 16 April.