20.—(1) Where a person is employed under a contract which does not include (expressly or by reference to a collective agreement or otherwise) a term satisfying subsection (1) of section 19, the contract shall be taken to include a term giving effect to that subsection; and, if such an implied term conflicts with an express term, it shall override the express term.

(2) In this section “employed” has the same meaning as in section 19.