On the western Christian calendar, what date is Twelfth Day?

Question

What is the name of the feast day in the Western Christian calendar which occurs on 29 September to honour the defeat of Lucifer in the battle for the heavens, for which the traditional meal includes goose (a "stubble-goose", i.e. one prepared around harvest time)?

Answer 1

6 January
It is 12 days after Christmas day, on 25 December. In eastern Christian churches it falls on 19 January, because of the 13-day difference today between that calendar and the Gregorian calendar used in the west. The date of 5 January is Twelfth Night.