I'm sorry but it's not possible. What einstein teory did prove with his train experiment was that you see only when light hits your eyes. If train is moving onto the light , surely you will see it first because you go onto the light(the light has shorter distance to travel). You could make a room which was full of mirrors , to brake the light which would go out of the other end for example. As you watched(at the one end) if you could slow down the speed at which the light gets to your end (by braking it)where you are standing you wouldn;t notice if there was moving objects because you can't see if your eye doesn't get the light which carries the visual image.
But, I doubt you could travel through time. If everything is made by atoms or Energy this means, if you could save somehow the whole worlds current state you could recreate it later , which would mean time travel. Other than that I can't see how would it be possible.
And besides, time is just as metre, just a human selfmade measurment of something. time doesn't exist at all. Atoms are moving around, it doesn't change anything, just a Energy, when it moves nothing happens it is just changing from one type to another. keep in mind everything is a energy, and by that how can you travel through time?