“Leave to which a worker is entitled under [Regulation 13] may be taken in instalments, but— (a) it may only be taken in the leave year in respect of which it is due, and (b) it may not be replaced by a payment in lieu except where the worker’s employment is terminated.”
“A worker may take leave to which he is entitled under regulation 13 and regulation 13A on such days as he may elect by giving notice to his employer in accordance with paragraph (3), subject to any requirement imposed on him by his employer under paragraph (2).”
“ Any right or obligation under paragraphs (1) to (4) may be varied or excluded by a relevant agreement.”
“A worker is entitled to be paid in respect of any period of annual leave to which he is entitled under regulation 13 and regulation 13A, at the rate of a week’s pay in respect of each week of leave.”
“[...] a workforce agreement [...], any provision of a collective agreement which forms part of a contract between [the worker] and his employer, or any other agreement in writing which is legally enforceable as between the worker and his employer [...].”
“Article 7(1) of [the Working Time] Directive [...] [precludes] national provisions or collective agreements which [prevent] a worker who is on sick leave during a period of annual leave [...] [from taking] his annual leave [after his recovery] at a time other than that originally scheduled, if necessary outside the [leave year or carry‑over] period [...]. Article 7(1) [...] does not preclude, as a rule, national legislation which lays down conditions for the exercise of the right to paid annual leave [...], including even the loss of that right at the end of a leave year or of a carry‑over period, provided, however, that the worker [...] has actually had the opportunity to exercise that right. Thus, the right to paid annual leave is not extinguished at the end of the reference period laid down by national law where the worker was on sick leave for the whole or part of the leave year and has not actually had the opportunity to exercise that right. [...] [T]he purpose of the entitlement to paid annual leave is to enable the worker to rest and to enjoy a period of relaxation and leisure. [...] [He is] entitled to actual rest, with a view to ensuring effective protection of his health and safety [;] [...] it is only where the employment relationship is terminated that [...] an allowance [may] be paid in lieu of paid annual leave [...]. The purpose of the entitlement to sick leave is different. It is given to the worker so that he can recover from being ill.”