Interest on this Debenture shall commence accruing on the Issuance Date, shall accrue daily at the Interest Rate on the outstanding Principal amount from time to time, shall be computed on the basis of a 365-day year comprised of twelve (12) months and shall be payable in arrears upon the earlier of (i) the last day of June, September, December and March, commencing on the Issuance Date, until the principal hereof shall have become due and payable and, (ii) the date of conversion into Common Stock in accordance with Section 5 herein below.