The subjective experience of the passage of time. The brain interprets both internal and external stimuli and processes that stimuli to estimate time passing. Generally speaking psychological time passage depends on its being filtered by mood or feeling. Boredom stretches time sense while excitement tends to shrink the perception of passage. Also included are physiological determinants like brain function or certain drugs.
PSYCHOLOGICAL TIME: "Psychological time passes faster when one is engaged and slower when one is bored or doing an unpleasant task."