Employment Ordinance

(1)
Subject to subsection (2), no employer shall require an employee to work on any of his rest days.
(2)
An employer may require an employee to work on his rest day if it is necessary to do so by reason of a breakdown of machinery or plant or other unforeseen emergency of any nature.
(3)
An employer shall substitute for any rest day on which an employee is required to work under subsection (2) some other rest day within the period of 30 days next following, notice of which shall be given to the employee within 48 hours after the employee is so required to work.