Which country or entity uses the Juche calendar?

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

North Korea
The Juche calendar begins with the birth of the founder of the Democratic People's Republic of Korea, Kim Il-sung.