According to the information found on the credit website of the central bank, the first time Dad used a credit card, it was one month overdue, and the amount was 30 yuan. According to the standards of China's credit information system, one month overdue belongs to the category of bad records.

Specifically, the following are some detailed explanations about the central bank's credit reporting, bad records and overdue:

1. Central Bank Credit Information: Central Bank Credit Information is a credit information platform managed by the Credit Information Center of the People's Bank of China, which is used to record the credit behaviors of individuals and institutions, including credit records and overdue records. Banks and other financial institutions usually inquire about the credit information of the central bank to understand the personal credit situation.

2. Bad records: In the central bank's credit investigation, bad records refer to personal bad credit behavior records such as overdue, breach of contract and arrears. One month overdue is regarded as a bad record.

3. Special report: You can report to the card issuer to explain the special situation of Dad. The issuing bank will judge whether to cancel the overdue record according to the specific circumstances, but there is no guarantee that it will be cancelled.

4. Impact on retirement: Dad will retire next year, and overdue records may have a certain impact on retirement management. Because banks often refer to personal credit records when handling pension payments, bad records may have a certain adverse impact on pension applications.

5. Impact of credit investigation: An ordinary overdue record may have a certain impact on personal credit. In the future, when banks and financial institutions apply for loans, credit cards and other financial products, they may have doubts about their credit records, leading to the reduction or rejection of credit lines.

To sum up, dad's overdue records will be recorded in the central bank's credit information center, which belongs to the category of bad records. Special circumstances can be reported to the issuing bank, but records cannot be guaranteed to be extracted. At the same time, overdue records may have a certain impact on dad's retirement next year, and also have a certain impact on the approval of financial products such as loans and credit cards in the future. In view of this, it is suggested that Dad contact the issuing bank in time to learn about the specific solutions and remind him to be more cautious in the use of credit cards in the future to avoid overdue behavior.