20 years ago were published the first rules reducing the legal duration of the working time to 35 hours per week. We know how much this measure was criticized at that moment even when it was in practice for a long time in the German industry. The socialists themselves, who were at its origin, are not anymore defending today that reform. As an irony of history, and maybe to celebrate this anniversary, the IG Metall union has just obtained, after a long and tough social battle, the possibility, for its employees who would ask for it, to work only 28 ...