The hidden politics of time: How clocks, calendars — and now-contentious time zones — came to be

The methods used for tracking time—including clocks, calendars, and time zones—are not universal but are shaped by culture, religion, economics, and politics. Experts suggest that all measurements of time are arbitrary, noting that none of the way we count time is natural. The complexity of timekeeping is demonstrated by debates like Daylight Saving Time in the United States, where legislation has been proposed to make the shift permanent year-round.