Re: The Emacs Calculator and calendar

[Ulrich Mueller]

>>>>> On Sun, 07 Oct 2012, Paul Eggert wrote:

> +There is no ``year 0''; the day before
> address@hidden<Mon Jan 1, +1>} is @samp{<Sun Dec 31, -1>}.  These are
> +days 2 and 1 respectively in Calc's internal numbering scheme.

If the goal is to make calc and calendar compatible, wouldn't it also
make sense to shift the numbering of days, so that <Mon Jan 1, +1>
(Gregorian) will have day number 1?

That is, use the same day counting as calendar does:

   (calendar-absolute-from-gregorian '(12 31 -1))
   0

   (calendar-absolute-from-gregorian '(1 1 1))
   1

Ulrich