On the ethical side of things, from the Letter to Menoeceus, we have this about time:
"And just as with food he does not seek simply the larger share and nothing else, but rather the most pleasant, so he seeks to enjoy not the longest period of time, but the most pleasant."
And also for Epicurus, and Epicureans, understanding "the nature of things" was also important. We now have a much more complex creation of time, compared to the ancient Greek sundial. I came across this interesting article, about the science of atomic clocks:
---Not only the physics of time, but also the perception of time and how our consciousness experiences it.
---That old cliche: "So many books, so little time" and also the busy-ness of life and making peace with "time".