 <translate> Q: Context: The Twelve Days of Christmas, also known as Twelvetide, is a festive Christian season celebrating the Nativity of Jesus Christ. In most Western ecclesiastical traditions, "Christmas Day" is considered the "First Day of Christmas" and the Twelve Days are 25 December -- 5 January, inclusive. For many Christian denominations; for example, the Anglican Communion and Lutheran Church, the Twelve Days are identical to Christmastide, but for others, e.g., the Roman Catholic Church, "Christmastide" lasts longer than the Twelve Days of Christmas.

Question: when does the first day of christmas start? Let's give stream of consciousness first: <yor> Ìbéèrè: Àkòrí: Ọjọ́ méjìlá ti Kérésìmesì, tí a tún mọ̀ sí Twelvetide, jẹ́ àsìkò ayẹyẹ Kristẹni tí a fi ń ṣe ayẹyẹ Ìbí Jésù Kristi. Nínú ọ̀pọ̀lọpọ̀ àwọn àṣà Ìjọ Ìwọ̀-oòrùn, "Ọjọ́ Kérésìmesì" ni a kà sí "Ọjọ́ Àkọ́kọ́ ti Kérésìmesì" àti ọjọ́ méjìlá ni 25 Oṣù Kejìlá - 5 Oṣù Kínílá, pẹ̀lú. Fún ọ̀pọ̀lọpọ̀ àwọn ẹ̀sìn Kristiẹni; fún àpẹrẹ, Ìjọ Anglican àti Ìjọ Lutheran, Ọjọ́ mejila náà bá àkókò Kérésìmesì mu, ṣùgbọ́n fún àwọn mìíràn, fún àpẹrẹ, Ìjọ Roman Catholic, "Ọjọ́ Kérésìmesì" gùn ju Ọjọ́ mejila ti Kérésìmesì lọ.  Ìbéèrè: ìgbà wo ni ọjọ́ àkọ́kọ́ ọdún Kérésìmesì máa ń bẹ̀rẹ̀? Ẹ jẹ́ ká kọ́kọ́ sọ̀rọ̀ nípa ìmọ̀lára: 