(a) Interest (other than interest based on the Alternate Base Rate, Canadian Prime Rate or BA Rate) shall be calculated on the basis of a 360-day year for the actual days elapsed; and commitment fees and interest based on the Alternate Base Rate, Canadian Prime Rate or BA Rate shall be calculated on the basis of a 365-day year (or 366-day year, as the case may be) for the actual days elapsed. The Administrative Agent shall as soon as practicable notify the Parent Borrower and the affected Lenders of each determination of a Adjusted LIBOR Rate. Any change in the interest rate on a Loan resulting from a change in the Alternate Base Rate, the Canadian Prime Rate or the Statutory Reserves shall become effective as of the opening of business on the day on which such change becomes effective. The Administrative Agent shall as soon as practicable notify the Parent Borrower and the affected Lenders of the effective date and the amount of each such change in interest rate.