Ahh...shades, I do tend to disagree with you that. Time is in fact relative to something else, because someone had to define the meaning of time, (a second, for example). Actually, a second was originally about 1/86400 of an average solar day. We have since refined that to about 9 billion periods of a radioactive atom (I'm not sure, but I do believe it's cesium. I may have to look it up). Now, time is relative then to radioactive decay, and we haven't been nearly around long enough as humans to know whether or not the decay of Cesium changes, or is relative to, environmental settings or even the amount of "time" since it's existance.
That's just one example...for the sake of argument of course