Classification of Time

 This is the last day of the first two decades of the twenty-first century. It is a good time to spend even more time thinking about time.There are different kinds of clocks, “audio” clocks--time that we detect with pulsed sound;, or patterned silences, “vision” clocks--time we detect with vision (sometimes accompanied by sound), body clocks (embodied time), and “emotional” clocks, an internal