I think it's safe to say we all have those days.
Einstein, I believe it was, who said Time for each individual is perceived at a different rate but not in those exact terms as I can't recall the
term he used because I'm having a brain fart at the moment.
Time is measured at a constant by mechanical means but we each may precieve the day going faster on vacation and going slower at work.
Edit: I should point out though that maybe if gravity was changed enough in a particular area you could see a clock slow down due to the forces
pulling down on a mechanical clock with hands. Chances are though it's a dead or dieing battery but is kind of fun to think about anyway.
[edit on 15-1-2009 by Darthorious]

