...that time appears to distort depending on you level of personal boredom?
i suggest that your heart-rate increases under stress. i suggest that you heart-rate decreases when you are relaxed. i have found that i view times of high heart rate as passing 'slowly' and times of slow heart rate as 'fast'.
time flies when you're having fun.
a watched kettle never boils.
that sort of thing.
can you have a measure without a scale?
given these points, what do you deduce re: relative time perception?