A part-time worker is an employed person whose normal hours of work are less than those of comparable full-time workers, which may be calculated weekly or on average over a given period of employment. The term ‘comparable full-time worker’ refers to a full-time worker who: (a) has the same type of employment relationship; (b) is engaged in the same or a similar type of work or occupation; and
(c) is employed in the same establishment or, when there is no comparable full-time worker in that establishment, in the same enterprise, or, when there is no comparable full-time worker in that enterprise, in the same branch of activity, as the part-time worker concerned; Full-time workers affected by partial unemployment, that is by a collective and temporary reduction in their normal hours of work for economic, technical or structural reasons, are not considered to be part-time workers.