Jenny Odell opens Saving Time by challenging a deeply ingrained modern assumption: that clock time, and its tight association with productivity and efficiency, represents a fixed, natural feature of reality rather than a relatively recent historical and cultural construction.

Her historical argument:

• Odell traces how standardized, mechanical clock time emerged specifically alongside industrial labor discipline, replacing more varied, task-based and seasonal relationships with time that characterized earlier and non-industrial societies
• Pre-industrial and non-Western societies frequently organized time around natural cycles, communal rhythms, or the completion of specific tasks, rather than abstract, uniform units demanding constant optimization
• The modern imperative to "save time" or use it "efficiently" is, in Odell's account, a specifically capitalist framing that emerged to serve industrial productivity, not a universal human orientation toward time

This historical grounding sets up the book's central project: denaturalizing the current, often exhausting relationship many people have with time, by showing it was constructed — and could, in principle, be reconstructed differently.