When we speak of “clock time” we tend to mean the natural movement of moments. But of course, the clock is a mechanical device, and its measurements of moments is purely conventional. It ignores natural seasonal variations in the length of daylight and night and generally, as Barbara Adam notes, operates “independently of the variations that were the mark of planetary cycles.” Adam sums the the social, political, and psychological effects. (The psychological effects are especially intriguing: You can feel... Read more