You soon learn the tell the time to within fifteen minutes. After around fifteen years of not hanging a timepiece off my wrist, I’ve now got it down to within minutes most of the time. I can’t really say how this skill has been developed, but you just get to a kind of oneness with your environment, with the sky and the position of the sun and stars, even when cloudy. Of course, unless you throw off your chains, you will never experience this. And that’s fine, a piece of plastic or whatever on your wrist can inform you.
Also, I never get phone calls from people telling me to be such and such a place at a certain time to which I have to dutifully report. Yessir. And long may that last.