An essential condition, in both instances G‑V, 1(i) and G‑V, 1(ii), is that the disclosure in point must have taken place not earlier than six months preceding the filing of the application. For calculating the six-month period the relevant date is that of the actual filing date of the European patent application, not the priority date (G 3/98 and G 2/99).
Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/g_v_2.htm
Date retrieved: 17 May 2021