This Q&A assumes that no commission, piece work or shift premiums are involved. For information on holiday pay generally, see Practice Note: Holiday pay. The Working Time Regulations 1998 (WTR 1998), SI 1998/1833 entitle a worker to be paid in respect of any period of statutory holiday, ie for: • the basic entitlement of four weeks' annual leave (20 days for a regular full-time worker) each leave year, implementing the right to annual leave under Directive 2003/88/EC, the Working Time Directive (WTD) • an additional entitlement of 1.6 weeks' annual leave (eight days for a regular full-time worker) each leave year, which is a right under domestic legislation only Understanding this distinction is important because case law from the Court of Justice (subsequently applied in our domestic courts and tribunals) concerns the operation of Directive 2003/88/EC,