(a) when the employee is in part-time employment on a variable time schedule, the number of hours of work per week shall be the average number of hours of work per week spread over successive thirteen week periods commencing on the first of January of each calendar year; and
(A) wakati mfanyakazi ni katika ajira sehemu ya muda juu ya kutofautiana wakati ratiba, idadi ya masaa ya kazi kwa wiki atakuwa wastani wa idadi ya masaa ya kazi kwa kuenea wiki juu ya mfululizo kumi na tatu vipindi wiki kuanzia tarehe ya kwanza ya Januari ya kila mwaka wa kalenda; na