With regard to the issuing time and interest of the national debt in March 2024, the latest information in my memory at present is that savings bonds was issued on March 2024 10, with the variety of voucher-type savings bonds, and the principal and interest will be repaid in one lump sum at maturity.
But the specific interest rate information is not given directly. Since the interest rate of national debt is usually determined by the Ministry of Finance according to market conditions and policy adjustments, and announced before each issuance, it is necessary to consult the latest official announcement or the current national debt issuance plan issued by the Ministry of Finance in order to obtain the accurate issuance time and corresponding interest rate of national debt in March 2024.