Jc3s5h added a comment. In https://phabricator.wikimedia.org/T94539#1298550, @daniel wrote:
> @Smalyshev is it correct to say that at the moment, Julian dates are > converted to XSD 1.1 dates, but Gregorian dates stay XSD 1.0 in our output? I > think we should have an option for switching the XSD version of the output, > defaulting to 1.1. Obviously I'm not Smalyshev, but the only distinction discussed among these related Phabricator tasks is XSD 1.0 representing 1 BCE as -1000 while XSD 1.1 represents it as 0000. It would be helpful if someone would post links to the exact specifications for XSD 1.0 and 1.1 they are thinking of, but from what I found, XSD follows the Gregorian calendar because their notation is inspired by ISO 8601. Leaving ISO 8601 and its spawn aside, I am not aware of any consistent notational differences between the (possibly proleptic) Julian calendar and Gregorian calendar, other than the leap days that only occur in the Julian. If a date stored in Wikidata and the calendarmodel field were set to Julian, I can't imagine any difference in output format one might want to make compared to the calendarmodel field being set to Gregorian. An aside, just in case anyone decides to read a book I mentioned earlier, Dershowitz and Reingold's //Calendrical Calculations//. That book use the convention that Julian 1 BCE is -1 while Gregorian 1 BCE is 0. This is the only written work I have ever seen that follows this convention. TASK DETAIL https://phabricator.wikimedia.org/T94539 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: Jc3s5h Cc: daniel, Jc3s5h, JanZerebecki, Manybubbles, Thompsonbry.systap, Haasepeter, Beebs.systap, Aklapper, Smalyshev, jkroll, Wikidata-bugs, Jdouglas, aude _______________________________________________ Wikidata-bugs mailing list Wikidata-bugs@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata-bugs
