Jc3s5h added a comment. ISO 8601:2004_E states
**--calendar year** is, unless specified otherwise, represented by four digits. Calendar years are numbered in ascending order according to the Gregorian calendar by values in the range [0000] to [9999]. Values in the range [0000] through [1582] shall only be used by mutual agreement of the partners in information interchange." That version also indicates negative years are acceptable by mutual agreement, and that 0000 is a leap year in the proleptic Gregorian calendar. If 1 BC were designated -0001, that would be the year that's a leap year, but since 0000 is the leap year, -0001 must correspond to 2 BC. TASK DETAIL https://phabricator.wikimedia.org/T93256 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: Jc3s5h Cc: JanZerebecki, Jc3s5h, thiemowmde, Aklapper, Wikidata-bugs, aude _______________________________________________ Wikidata-bugs mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikidata-bugs
