On 07/01/2015 07:00 AM, Pierpaolo Bernardi wrote:
On Wed, Jul 1, 2015 at 8:17 AM, Markus Krötzsch markus@semantic-mediawiki.org wrote:
Dear Pierpaolo,
This thread was only about Julian and Gregorian calendar dates. If and how other calendar models should be supported in some future is another (potentially big) discussion. As you said, there are many issues there. Let's first make sure that we handle the "easy" 99.9% of cases correctly before discussing any more complicated options.
Lydia Pintscher in the starting email explained that there's a model for calendars, and unfortunately this model could be (and has been) interpreted in two ways (AFAIU).
My intention was to point out that one of the two interpretations is not sound. This leaves the other one as the only viable one.
Cheers P.
It appears (from the email only---there are no pointers to enduring documentation on the solution that are attached to the relevant classes or poperties) that the chosen method is to store dates in both the source calendar and the proleptic Gegorian calendar (https://www.wikidata.org/wiki/Wikidata:Project_chat#calendar_model_screwup). As you point out, this is not a viable solution for calendars whose days do not start at the same time as days in the proleptic Gegorian calendar (unless, of course, there is time and location information also available).
peter