I can attest to this to some degree. The speed at which your brain operates influences your perception of time. I can recall when I was in good health that just

I can attest to this to some degree. The speed at which your brain operates influences your perception of time. I can recall when I was in good health that just listening to music sounded much different, especially with certain hallucinogenics, almost as if it were slowed down significantly than how I'd perceive it currently. I also suffer from depression and find that while depressed, time definitely seems to go by quicker and I'm not able to get as much done, and generally my thoughts are not as keen and rapid than when I'm not depressed. I have been semi-manic in the past and it was amazing how many thoughts and things I was able to accomplish in a shorter amount of time, but it also helped me enjoy more subtle things that I normally wouldn't be able to notice because my mind can't process as many things at once.