17.—(1) If neither the contract of employment of the employee concerned nor any employment regulation order, registered employment agreement or collective agreement that has effect in relation to the employee specifies the normal or regular starting and finishing times of work of an employee, the employee’s employer shall notify the employee, subject to subsection (3), at least 24 hours before the first day or, as the case may be, the day, in each week that he or she proposes to require the employee to work, of the times at which the employee will normally be required to start and finish work on each day, or, as the case may be, the day or days concerned, F14[that week, and the employee’s employer shall ensure the work takes place within predetermined reference hours and days.]

F15[(1A) When the requirements of subsection (1) are not met by the employee’s employer, an employee shall have the right to refuse to work during the reference hours and days predetermined by the employer in accordance with that subsection without adverse consequences.]

(2) If the hours for which an employee is required to work for his or her employer in a week include such hours as the employer may from time to time decide (in this subsection referred to as “additional hours”), the employer shall notify the employee, subject to subsection (3), at least 24 hours before the first day or, as the case may be, the day, in that week on which he or she proposes to require the employee to work all or, as the case may be, any of the additional hours, of the times at which the employee will be required to start and finish working the additional hours on each day, or, as the case may be, the day or days concerned, of that week.

(3) If during the period of 24 hours before the first-mentioned or, as the case may be, the second-mentioned day in subsection (1) or (2), the employee has not been required to do work for the employer, the time at which the employee shall be notified of the matters referred to in subsection (1) or (2), as the case may be, shall be not later than before the last period of 24 hours, preceding the said first or second-mentioned day, in which he or she has been required to do work for the employer.

(4) A notification to an employee, in accordance with this section, of the matters referred to in subsection (1) or (2), as the case may be, shall not prejudice the right of the employer concerned, subject to the provisions of this Act, to require the employee to start or finish work or, as the case may be, to work the additional hours referred to in subsection (2) at times other than those specified in the notification if circumstances, which could not reasonably have been foreseen, arise that justify the employer in requiring the employee to start or finish work or, as the case may be, to work the said additional hours at those times.

(5) It shall be a sufficient notification to an employee of the matters referred to in subsection (1) or (2) for the employer concerned to post a notice of the matters in a conspicuous position in the place of the employee’s employment.

F15[(6) In this section—

"reference hours and days" has the same meaning as it has in Directive (EU) 2019/1152 of the European Parliament and of the Council of 20 June 20197 on transparent and predictable working conditions in the European Union;

"seafarer" has the same meaning as it has in the Agreement concluded by the European Community Shipowners’ Associations (ECSA) and the European Transport Workers’ Federation (ETF) on the Maritime Labour Convention, 2006, implemented by Council Directive 2009/13/EC of 16 February 2009⁸;

"sea fisherman" has the same meaning that "fisherman" has in the Agreement concerning the implementation of the Work in Fishing Convention, 2007 of the International Labour Organisation, concluded on 21 May 2012 between the General Confederation of Agricultural Cooperatives in the European Union (Cogeca), the European Transport Workers’ Federation (ETF) and the Association of National Organisations of Fishing Enterprises in the European Union (Europêche) implemented by Council Directive (EU) 2017/159 of 19 December 2016⁹.

(7) This section shall not apply to seafarers or sea fishermen.]