In the case of a corporate bond, we use the 30/360-day count convention. A 12% coupon rate per year implies a coupon of $6 on each of these dates. Based on the 30/360 convention, the number of days between March 1 and April 30 is 59 days (= 29 + 30, in March and April, respectively). The reference period, March 1 to September 1, has 180 days (= 29 + 30 + 30 + 30 + 30 + 30 + 1, in March, April, May, June, July, August, and September, respectively). Thus, Accrued interest = (59/180) × 6 = 1.9667.