It's not clocks themselves; I just have a spatial concept of time and where I am in relation to hours, days, months, years. For me, the year stretches upward and to the right, with a slight hook at January, a steep climb to September, and a smoother grade through December. The months and weekdays are color-coded (depending on the "zoom"--if I'm zoomed in to a week the colors are the days of the week, but when I zoom out to a year the weekday colors don't interfere with the month colors). I also picture history this way, though describing the spatial locations there would take a 3D model.

So when I look at a clock or calendar it's not so much blue-thirty as it is figuring out where the hours are in relation to me. Which is why I've been known to point to my left when I'm talking about the future, come to think of it.