Baby, can you dig your time travelin' man?

Finally, after centuries of failed attempts, generations of lonely relatives gone mad, I have invented a functioning time machine! I use the term functioning loosely, considering that it only goes through time forward or backwards in eight minute increments, and the fuel cell requires twenty three hours fifty two minutes to recharge. This will only come in handy for last minute betting, messy bathroom mishaps, and getting through annoying blocks of commercials. I still, for the most part, consider this to be a success.
In an attempt to travel through a substantial amount of time I once built a series of time machines that I would use one after the other. In theory this was a brilliant idea. Although when going backwards I found myself at a place where none of my machines had been built yet, so I had to wait for the universe to catch up to me and rebuild. This proved to be quite exhausting. And, when trying the same method to travel into the future, taking into account the six minutes forty seven seconds to operate the machine, time eventually caught up to me. I was, at one point traveling through time to the present ( I don't need to tell you of all the bazaar paradoxes this created).