PUBLIC LAWS-CH. 274-JULY 6, 1945 Night work defined. Sick leave. Classified substitute employees. Where compensa- tion on annual basis. Installments. Month construed. of the annual rate of pay received by such employees. In computing compensation for such overtime employment, the annual salary or compensation for such employees shall be divided by two thousand and eighty, the number of working hours in a year. The quotient thus obtained will be the base hourly compensation and one and one-half times that amount will be the hourly rate of overtime pay: Provided, That the provisions of this section shall not apply to employees of the Railway Mail Service and the Air Mail Service; post-office inspectors; rural carriers; traveling mechanicians; examiners of equipment and supplies; employees paid on an hourly basis, and supervisory employees. NIGHT DIFFERENTIAL SEC. 5 . Employees who are required to perform night work shall be paid extra for each hour of such work at the rate of 10 per centum of their base hourly compensation, computed by dividing the base annual salary by two thousand and eighty. Night work shall be defined as any work performed between the hours of 6 o'clock postmeridian and 6 o'clock antemeridian: Provided,That such differential for night duty shall not be included in computing any overtime compensation to which the officer or employee may be entitled. The provisions of this section shall not apply to post-office inspectors; traveling mechanicians; examiners of equipment and supplies; officers of the Railway Mail Service and of the Air Mail Service; and rural carriers. ANNUAL LEAVE SEC. 6 . Postmasters and employees shall be granted fifteen days' leave of absence with pay, exclusive of Saturdays, Sundays, and holi- days, each fiscal year and sick leave with pay at the rate of ten days a year, exclusive of Saturdays, Sundays, and holidays, to be cumulative. Sick leave shall be granted only upon satisfactory evidence of illness in accordance with regulations to be prescribed by the Postmaster General: Provided, That the fifteen days' leave shall be credited at the rate of one and one-quarter days for each month of actual service: Provided further, That classified substitute employees, under such regulations as the Postmaster General may prescribe, shall be granted the same rights and benefits with respect to annual and sick leave that accrue to regular employees in proportion to the time employed in a pay status and one hundred and sixty-eight hours and forty minutes of such employment shall entitle the employee to one and one-quarter days' annual leave and six hours and forty minutes' sick leave: And providedfurther,That in no event shall a classified substitute employee be credited during a twelve-month period with more than fifteen days' annual and ten days' sick leave. METHOD OF PAYMENT SEC. 7 . Where the compensation of any postmaster, other officer, or employee is on an annual basis, the following rules for division of time and computation of pay for services rendered are established: Annual compensation shall be divided into twelve equal install- ments, one of which shall be the pay for each calendar month and one-half of each such installment shall be paid on the sixteenth day of the month and the first day of the following month, or as soon thereafter as practicable. For the purpose of computing such com- pensation and for computing time for services rendered during a fractional part of a month, in connection with annual compensation, each and every month shall be held to consist of thirty days, with- out regard to the actual number of days in any calendar month, thus excluding the thirty-first day of any calendar month from the 436 [59 STAT.
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