El Misterioso Caso de la Máquina del Tiempo

In our warehouse we keep unusual objects, in this case a time machine. Due to a technical failure in the machine, it has traveled to a point X in time space, when we recovered it and made a thorough review, we have realized that the most essential part of the machine is missing, the book of its operation and its designs. These documents are very important because if they fall into the wrong hands they could change the course of history as we know it.
Your mission will be to start the time machine, travel back in time and retrieve these essential documents, but remember, the machine does not have enough energy to last more than an hour of travel.
Good luck!