I'm a synesthete (someone who mixes sensory experiences -- this website offers exampes and a test) with time. I've heard conflicting things about time synesthetes: some claim it's the most common form of synesthesia; others claim it's the rarest. Whatever it is, I have it, and to me, time is a distinct shape and feel in my mind.
I'm always aware of the movement of time, as well. Even as I go through my day, I can feel the curve of time and its constant flow. Does this mean I'm punctual? Not even close -- I tend to believe I can fit in just about anything, regardless of the small amount of time available ;)
Right now, I have a to-do list which is longer than I am, and in my mind, I see that contrasting with the space of time in which it must be done...we'll see what happens ;) Of course, I assume I'll get it done. The intereting thing is, it always does get done. No matter how impossible it appears, I've never missed a deadline.
How about you? Do you see or feel time? Is it your friend or your foe? :)