Judgment_paragraph 65 · Istituto nazionale della previdenza sociale (INPS) v Tiziana Bruno and Massimo Pettini and Daniela Lotti and Clara Matteucci (C-395/08, C-396/08)

65Accordingly, the calculation of the amount of the pension is directly dependent on the amount of time worked by the employee and the corresponding amount of contributions, in accordance with the principle of pro rata temporis. It must be borne in mind, in that regard, that the Court has already held that European Union law does not preclude a retirement pension being calculated pro rata temporis in the case of part-time employment. Taking into account the amount of time actually worked by a part-time worker during his career, as compared with the amount of time actually worked by a person who has worked on a full-time basis throughout his career, is an objective criterion, allowing his pension entitlement to be reduced proportionately (see, to that effect, Schönheit and Becker, paragraphs 90 and 91, and Gómez-Limón Sánchez-Camacho, paragraph 59).