In many Western ecclesiastical traditions, Christmas Day is considered the "First Day of Christmas" and the Twelve Days are 25 December – 5 January, inclusive, making Twelfth Night on 5 January, which is Epiphany Eve.

Is 12th night the 5th or 6th of January?

Twelfth Night is a Christian festival marking the beginning of Epiphany. A count of exactly 12 days from 25 December takes us to 5 January. According to the Church of England, this day is Twelfth Night. However, the day of Epiphany falls on the following day – 6 January.

Do Christmas decorations come down on 5th or 6th January?

The Church of England counts from Christmas Day, so the Twelfth Night always falls on 5th January. But other denominations, including the Catholic Church, start counting the 12 Days of Christmas from Boxing Day, so the 6th January is the Twelfth Night and also Epiphany.