My daughter just sat down next to me, and trying her best to understand the concept of daylight savings, said, "It's not this time."
The clock read 8:09 AM and she was absolutely right: it's not this time.
Without turning this into a philosophical discussion, time is a tool, a unit of measurement without any empirical reality. It's the temporal equivalent of an inch. We can no more demonstrate a minute than we can an inch (for you smart alecs out there, we can only point to an inch of something like an inch of wood or carpet, but never an inch itself) because neither exist.
Time is a concept, and a very useful one at that--that is, when it's used properly. Time can help us plan, organize, and reflect. Come to think of it, the history of time (the concept) would make for a fascinating book, if it hasn't already been written. But I digress.
Time can be very helpful, provided we use it, and not the other way around. But the problem is that the latter is all too often the case. We are time slaves, chained to the imaginary concept. It's like The Matrix or The Terminator; we've been enslaved to the construct we have created. We try to "save" and "use" time like it was a physical commodity. Obviously we can't, and so we suffer.
Time has no substance, nothing we can take hold of. In fact, nothing does. That's emptiness, the Buddhist principle of insubstantiality of phenomena.
The modern remedy to time obsession is the slogan, "Be here now." But even "now" is an idea that only gains meaning in comparison to the past and future. The present is just as much of an illusory construct as any other frame of reference, for the sheer fact that the present is ungraspable; it's always changing!
So where does this leave us? In the timeless realm of the Dharmadhatu. Nirvana. Or in Mahayana terms, the Bodhisattva realm of How may I help you?
"Hi, how are you today?" "What can I do for you?" "Do you want something to drink?"
All we can do is function.
Wake up, stay awake, and save all sentient beings.