(a) All fees and interest hereunder shall be calculated on the basis of a 360-day year for the actual days elapsed, except that (i) interest on Base Rate Loans calculated using clause (b) of the definition of “Base Rate”, (ii) interest on Prime Rate Loans calculated using clause (a) of the definition of “Prime Rate” and (iii) interest on Eurocurrency Loans denominated in Canadian Dollars shall, in each case, be calculated on the basis of a 365/366-day year, as the case may be, for the actual days elapsed. The Administrative Agent shall as soon as practicable notify the U.S. Borrower and the Lenders of each determination of each Eurocurrency Rate for any Eurocurrency Loans outstanding. Any change in the interest rate on a Loan resulting from a change in the Base Rate or Prime Rate 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 U.S. Borrower and the Lenders of the effective date and the amount of each such change in interest rate.