Earlier quoted context omitted.
But the current concept of time is also based on the outdated industrial age concept of a 'working day' being 9-5. I doubt many of the people on HN for instance, work those set hours in this day and age. Nowadays it is purely a convenience factor to keep the worker drones in the same hive so they can gather for the next interminable meeting. With the rise of remote working, and other forms of communication tools, no…
The working day is based on when humans naturally want to be active. Remote work, while increasing, is a fraction of work that's actually done. Humans are wired (in the majority) for the day, and our time conventions match that.
It's always been a struggle to force myself to conform to society's idea of "normal hours," especially in high school when I had to wake up at 6 AM.
I realize most people struggle relating to this; try imagining starting your day at 10 PM, if you're a "normal" morning lark.