Before the railroad spread out in France, every place
had its own local time (not its local date, though...)

By the way, when thinking about calendars, let's not
forget that the length of the day slowly changes too.
In fact, every changes: the time for the Earth to
rotate on its own axis, the time for the Moon to
orbitate around the Earth, the time for the Earth to
orbitate around the Sun, the distance between Moon and
Earth, Earth and Sun, etc. So what steady unit could
we use ?

--- Andreas Johansson <[log in to unmask]> wrote:
> Quoting "Mark J. Reed" <[log in to unmask]>:
> > On Sun, Apr 25, 2004 at 12:15:20PM +0200, Andreas
> Johansson wrote:
> > > I assume this is today done centrally, but in
> the days before modern
> > > communications, mustn't it have led to
> desynchronization of the Islamic
> > > caldenars used in different regions?
> >
> > In the days before modern communications, what did
> it matter? :)
> > Seriously, it amounts to a one-day discrepancy at
> most and is regarded
> > as tanatmount to time zone differences in time of
> day.
> It seems to me it would be inconvenient for trade
> and diplomacy if you could not
> know what date it was in the next city.

Philippe Caquant

"High thoughts must have high language." (Aristophanes, Frogs)

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