There are better works that describe the different cultural roots of “obvious” concepts, reflected or not reflected in language. “Time” can consist of point of «now» with axes to “past” and “future”. Or it can start at “now” and flow to the “past”. Or “now” can be a process instead of point, with both ends disappearing in the fog, so that tomorrow's “now” is also “now”, and the day after tomorrow, and so on. Time can be circular, with events kicking the needle out of the groove, or it can be linear. The “events” can be self-contained points in time, “facts”, or they can be processes, flows, in which you're either in or not. Even the distinction between “work time” (“doing something”) and “leisure time” (“doing nothing”, though not synonymous with lack of activity) depends on habit and technical ability to track time. All this defines how people leave their lives and reason about them.