Many notes mature in less than a full year, and the period they cover is often expressed in days. When the time of a note is expressed in days, its maturity date is the specified number of days after the note’s date. As an example, a five-day note dated June 15 matures and is due on June 20. A 90-day note dated July 10 matures on October 8. This October 8 due date is computed as shown in Exhibit 9.15. The period of a note is sometimes expressed in months or years. When months are used, the note matures and is payable in the month of its maturity on the same day of the month as its original date. A nine-month note dated July 10, for instance, is payable on April 10. The same analysis applies when year are used.