for Vision we have a photoreceptors in the retina…
Page 139 for Vision we have a photoreceptors in the retina, for hearing, there are hair cells in the ear, but there is no dedicated sensory system for time. What's more setting aside the circadian rhythm, which provides us with Jet lag among other things, there is no evidence for any neural clock inside the head, which measures our experiences in time, and which would in any case be a prime example of what Daniel Dennett called a double transduction, in which a property of the world is reinstantiated in the brain for the benefit of an assumed internal observer. Instead, like change, like all our perceptions, experiences of time are controlled hallucinations to
— from The Flight Plan (Purpose/Wisdom/Risk)