We see colours, hear sounds and feel textures. Some aspects of the world, it seems, are perceived through a particular sense. Others, like shape, are perceived through more than one sense. But do we have specific sense or senses do we use when perceiving time?
It is certainly not associated with one particular sense. In fact, it seems odd to say that we see, hear or touch time passing. And indeed, even if all our senses were prevented from functioning for a while, we could still notice the passing of time through the changing pattern of our thought. Perhaps, then, we have a special faculty, distinct from the five senses, for detecting time. Or perhaps, as seems more likely, we notice time through perception of other things, including people suggesting to us that time has dragged or that time has flown.
Logic dictates that our temporal perception differs from our spatial perception. We can look at something and see how near or far it is, or indeed how quickly it passes by. Yet with time we often require the spatial to determine and process the temporal. Most often a clock or watch, historically the hours of sun-light and as in the cases you suggest � by events or methodical processes � which we assume to believe take a specified amount of time, ergo, if we do them quicker or slower then this alters time respectively.
Because you are busy, your perception is that time has flown, simply because you believe that a lot of time must have passed. In reality it hasn�t, time is constant and is immemorial, it is only your temporal perception which is confused and restrained by your time-thought perceptions.