Jc3s5h added a comment. I note thiemowmde's patch for review at Feb 6, 16:32 says what we are doing now is:
//* URI identifying the calendar model. The actual time value should be in this calendar model, - but note that there is nothing this class can do to enforce this convention.// That seems to be more-or-less true, but some entries follow the documentation and put the date in the Gregorian calendar no matter what the date. Using the convention stated above may mislead data users, since, so far, the date is stored in the ISO 8601 format (with certain errors). The format itself is a declaration that it is a Gregorian date. There is no standard that resembles ISO 8601 but which supports Julian dates, so a standard would have to be created. Storing the date in the calendar indicated the URI identifying the calendar model creates a many-to-many conversion problem, if Wikidata ever supports calendars in addition to Gregorian and Julian. Data users will have to be able to convert from any Wikidata supported calendar to any calender the user desires. This is much more difficult than being able to convert from the Gregorian calendar to the calendar of the user's choice. Note that, in effect, the URI identifying the calendar model really only gives the name of the calender, not the format in which the date is stored. It wouldn't be too hard to extend ISO 8601 to support Julian calendar dates (although it would be hard to notify everyone we have done so). But that format would totally break down with some of the calendars out there that we might support. For example, Dershowitz and Reingold in Calendrical Calculations 3rd ed. describe how to convert to/from Julian Day, Modified Julian Day, Julian calendar, Egyptian calendar, Armenian calendar, Coptic calendar, and 24 more. TASK DETAIL https://phabricator.wikimedia.org/T88438 REPLY HANDLER ACTIONS Reply to comment or attach files, or !close, !claim, !unsubscribe or !assign <username>. EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: thiemowmde, Jc3s5h Cc: Jc3s5h, JulesWinnfield-hu, thiemowmde, daniel, Aklapper, Lydia_Pintscher, Wikidata-bugs, aude _______________________________________________ Wikidata-bugs mailing list Wikidata-bugs@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata-bugs
