; and (B) shall not be required to permit an employee to earn, under this subsection, more than 56 hours of paid sick time in a year, unless the large employer chooses to set a higher limit. (2) Exempt employees (A) In general Except as provided in paragraph (3), for purposes of this subsection, an employee who is exempt from overtime requirements under section 13(a)(1) of the Fair Labor Standards Act of 1938 ( 29 U.S.C. 213(a)(1) ) shall be assumed to work 40 hours in each workweek. (B) Shorter normal workweek If the normal workweek of an employee described in subparagraph (A) is less than 40 hours, the employee shall earn paid sick time based upon that normal workweek. (3) Dates for beginning to earn paid sick time and use (A) In general An employee shall begin to earn paid sick time under this subsection at the commencement of the employment of the employee. (B) Use An employee— (i) shall be entitled to use paid sick time that the employee has earned beginning on the 60th calendar day following commencement of the employment of the employee; and (ii) after the 60th calendar day described in clause (i), may use the paid sick time of the employee as the time is earned. (C) Discretion of employer A large employer may, at the discretion of the large employer— (i) loan paid sick time to an employee for use by such employee in advance of the employee earning such sick time as provided in this subsection