Abstract: A time recorder with a time controlled printer for recording time data in the lines of a stamping card, with a card slide forming a stop abutment for the stamping card which can be slid into the apparatus in the direction perpendicular to its lines, an electrical circuit including a switch which can be operated by sliding the stamping card to trigger the printing mechanism when the stamping card is in the printing position also with a plurality of stop abutments as a first element for defining the possible positions of the card slide when printing the stamping card and a bolt, adapted to cooperate with the plurality of stops and acting as a second element, both elements being movable relative to each other into an engagement and non-engagement position and one of the elements being associated with the card slide and being slidable therewith in relation to the other element, the two elemets being driven into the engagement position by the stamping card and are slidable in the said engagement position together