[mdp2021]

> we'd keep the summer hours year round

Not clear. Those you call «winter hours» are supposed to be the actual, real hours: noon equals zenith, midnight equals nadir. You can have some reasonable exception, but to call "midnight" all year what is not midnight makes no sense. It amounts to "falsehood", where it would be just social agreement to just wake, work, dine sooner or later.

[labster]

Actually, winter time is zero-indexed, and summer time has an index of one. “Real hours” depends on whether you like C or SQL more.

[mdp2021]

Watchmakers took their stance, setting 12 at the zenith.

[stormbrew]

The entire concept of time is a "social agreement". Including when noon is. Solar noon is never at clock noon where I live or for that matter in most places, it's off by an amount dictated by political decisions and boundaries as well as by the fact that it literally drifts a bit over the course of the year.

[mdp2021]

In a way, but it is not "anarchic performance art": it tends to adhere to the actual objective time - it makes sense to create a system that applies reasonable compromises, but attached with a rubber band to the real thing. Approximate flexibly but do not lose the anchor.

People in Paris know they have a pretty severe offset, ~50m (those in Vigo even ~95m). If you added a sticky +1h, the offset against solar time would increase to ~110m and ~155m.