Let’s face it: we all know that time can be perceived differently on an individual level. By age 10 each of has noticed that in some situations a minute is nothing but in other circumstances one feels every long bang of the second hand of a clock on the wall ticking and moving it’s long thin hand – on clocks that have a second measure as well as the minute and the hour.
Metabolism, awareness and muscular strength all contribute to whether or not a minute is a long or a short while. Pleasure and pain can all greatly influence the subjective perception of equal time periods.
There is a visual illusion: one dot is surrounded by other dots in a circle. In one case, the central dot is surrounded by ones that are bigger than it is. In a second case, the central dot is surrounded by smaller ones. The one surrounded by larger dots seems smaller than the other, but both are the same size.
It is highly likely that the subjective perception of time is like this: it may be literal in relation to blood vessels or neurons firing from a stimulated nerve.
Time: we all know it. It is no puzzle and yet sometimes mysterious.