Does Starry Night use the Gregorian or Julian calendar for old dates?

Starry Night uses the old Julian calendar for all dates before Oct. 15, 1582, and the Gregorian calendar for all dates more recent than this. The dates Oct. 5-Oct. 14, 1582 do not exist in Starry Night, to account for the ten days which were skipped when the new calendar was introduced.


Link:
www.starrynightsupport.com/support_trio/index.php?action=kb&print=93