Time clocks are used for checking and time recording for employees in companies. As an accessory, plug-in card boxes are attached to both sides. These boxes pick up the cards bearing the employee's name. At the beginning of work, your own card is now pulled out of the box and inserted into a specially provided slot on the time clock with slight pressure. In this process, the card is stamped by the timekeepers on which the day, hour and minute can be seen. Then the card is inserted into the second box. After the end of the working time the opposite way is taken.