From the nightstand, 'News from the Sun' by J. G. Ballard:

'Clock time' is a neuropsychological construct, a measuring rod confined to homo sapiens. The old labrador owned by the geologist next door obviously has a different sense of time, likewise the cicadas beside the pool. Even the materials of my body and the lower levels of my brain have a very different sense of time from my cerebrum-- that uninvited guest within my skull. 

Simultaneity? It's possible to imagine that everything is happening at once, all the events 'past' and 'future' which constitute the universe are taking place together. Perhaps our sense of time is a primitive mental structure that we inherited from our less intelligent forebears. For prehistoric man the invention of time (a brilliant conceptual leap) was a way of classifying and storing the huge flood of events which his dawning mind had opened for him. Like a dog burying a large bone, the invention of time allowed him to postpone the recognition of an event-system too large for him to grasp at one bite.