I think, if you actually read what was written, that he said time is NOT the fourth dimension.It has never been proven formally that time is the fourth dimension.
I sincerely doubt that you were doing it at the rate of 1 every four hours, unless you simply mean dimensional changes (e.g. imperial to metric or some such).I've done this kind of work too. At one time I as converting entire homes from USA standards to german standards at a rate of one house every 4 hours. The company made lots of money! I got to exercise my brain to move as fast as it could in the process at doing such conversions. There are other things to gain from such activities as well...
The building & safety regulations vary widely and would require far longer than 4 hours per...