Steps to replicate the issue (include links if applicable):

• Run a query that collects dates such as this one : https://w.wiki/6rSi (Collects the date of death of accused witches)

What happens?:

Date values in Wikidata using the Julian calendar are being displayed/converted to Gregorian calendar in the Wikidata Query service results. This 'conversion' is adding 10 days in the query results. e.g. if date of death = 4 January 1647 (Julian calendar) on Wikidata item (Q43395584) then it is displayed in query results as 1647-01-14T00:00:00Z. https://w.wiki/6rSi

What should have happened instead?:

The 'conversion' shouldn't happen and theQuery service results should return the date as it is on the item.

Software version (skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):