Judgment of the Court (First Chamber) of 7 November 2018 (request for a preliminary ruling from the Supreme Court of the United Kingdom — United Kingdom) — Dermod Patrick O’Brien v Ministry of Justice, formerly the Department for Constitutional Affairs

(Case C-432/17) (1)

((Reference for a preliminary ruling - Social policy - Directive 97/81/EC - Framework Agreement on part-time work concluded by UNICE, CEEP and the ETUC - Clause 4 - Principle of non-discrimination - Part-time workers - Retirement pension - Calculation of the amount of the pension - Account taken of years of service completed before expiry of the period for transposition of Directive 97/81/EC - Immediate application to the future effects of a situation which arose under the old law))

(2019/C 16/23)

Language of the case: English

Referring court

Supreme Court of the United Kingdom

Parties to the main proceedings

Appellant: Dermod Patrick O’Brien

Respondent: Ministry of Justice, formerly the Department for Constitutional Affairs

Operative part of the judgment

Council Directive 97/81/EC of 15 December 1997 concerning the Framework Agreement on part-time work concluded by UNICE, CEEP and the ETUC, as amended by Council Directive 98/23/EC of 7 April 1998, must be interpreted as meaning that, in a case such as that at issue in the main proceedings, periods of service prior to the deadline for transposing Directive 97/81, as amended by Directive 98/23, must be taken into account for the purpose of calculating the retirement pension entitlement.

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(1)  OJ C 318, 25.9.2017.