The Han's version of Time

I'm reading The Labyrinth of Time by Michael Lockwood. Like his earlier book Mind, Brain & the Quantum I'm finding it tough going. Lockwood, an Oxford philosopher, publishes sparingly – always a good sign – so I'll make the effort.
As I age, time passes more quickly for me: I'm not sure why, but it's real. Inevitably we view time through the short span of human life (perhaps one reason why we have such difficulty with global warming). I can feel two generations either side of my own, grandparents to grandchildren, but outside that it dims rapidly. With my head, I know about Planck time, the smallest interval of time, 10^-43 sec, and about the age of the Universe, 12 billion years, say 10¹⁷ secs, but I cannot comprehend this vast 10⁶⁰ interval other than by manipulating symbols: I can't feel it, or act on it.
To say with Dogen-zenji that our bodies are as transient as dew on the grass is, on this scale, being very generous. In time they are nothing.
This much-used han speaks of a slow time: if you have spent time in a monastery you will know the measured "tok, tok, tok", scaled to the affairs of man. Today the monk is as likely as not to have a crystal oscillator in her watch, ticking to a different beat, the MHz of the computer world. Each in its place, provided they stay there. Somewhere I read, "if it can be measured it isn't worth doing". Like most aphorisms, a kernel of truth, for our frenetic world.