An employer may, at its sole discretion, work time in to a maximum of 3 days per year (January to December), in lieu of normal working time that will be lost, owing to the closure of the establishment for religious holidays, or for any other reason. All employees concerned shall be paid their ordinary rates of pay, provided that the time expected to be lost shall be worked in prior to such closure and provided that an establishment's affected employees, were consulted prior to the working in of time. The payment of wages for the time worked in must be made to the employees concerned during the same pay week, when the time was lost.