HOURS OF WORK AND OVERTIME 23.01 The standard work week for employees shall be forty (40) hours per week. 23.02 The provisions of this Article are not to be interpreted as a guarantee of or a limitation upon the hours of work to be done per day or per week or otherwise nor as a guarantee of working schedules but shall serve to assist the parties in the computation of regular pay and overtime pay. An employee who has worked more than his regular scheduled hours in a day shall be entitled to overtime pay for those excess hours if he works his full scheduled work week. The requirement of working his full scheduled work week does not apply to a reduction in hours: (a) If the Company reduces his regularly scheduled straight time during the rest of the week. (b) If the employee is off work because of union business, bereavement leave, vacation, approved leave of absence or hospitalization. 23.03 Employees will be given a thirty (30) minute lunch period without pay during their working shift. 23.04 There shall be no pyramiding of overtime rates. 23.05 Overtime shall initially be on a voluntary basis. However, if the Company is unable to secure sufficient volunteers from amongst persons who have previously satisfactorily performed the work, such persons shall be required to work in reverse order of seniority. The Company shall keep up-to-date records of all overtime worked for employees' inspection. 23.06 Employees shall be allowed an uninterrupted ten (10) minute rest period approximately midway through each half shift. 23.07 Those functions operating on a three (3) shift per day basis are currently scheduled as follows: Day Shift 7:00 a.m. - 3:00 p.m. Afternoon Shift 3:00 p.m. - 11:00 p.m. Midnight Shift 11:00 p.m. - 7:00 a.m. subject to the following: (a) This shall not prevent the scheduling of individual functions at other times as required by operations. The Company agrees to discuss any changes in advance with the Union. (b) The lunch break for persons on such functions are twenty-five (25) minutes paid and the rest break of fifteen (15) minutes paid is once per shift. Whenever any permanent changes to any scheduled shifts are required, the Company will communicate the details of such change to the Union prior to the change.