Working hours under the Code on Wages: normal hours, weekly rest entitlement, and overtime pay for rest-day work. Section 13 authorises the appropriate Government, when minimum wages are fixed, to fix the number of hours constituting a normal working day inclusive of specified intervals, require a day of rest in every seven-day period with remuneration for such rest days, and provide that work on a day of rest be paid at not less than the overtime rate. Application of these provisions may be limited or conditioned by rules for specified classes including emergency workers, preparatory or complementary workers, essentially intermittent employees, tasks requiring technical completion before duty ends, and work driven by irregular natural forces; 'essentially intermittent' may be declared where duty includes periods of inaction.