Well, it's that time of year again. The time when people show that they have no idea what the twelve days of Christmas are or when they happen. The twelve days of Christmas are a season in the Christian church calendar, and they do not fall on the first twelve days of December. Christmas day is the first day of Christmas. The following eleven days, the days between Christmas day and the day of the Epiphany (January 6), are the other eleven days of Christmas.
In fact, there are several seasons within the Christian church calendar, complete with color coding. We are currently in the season of Advent, which is colored purple or dark blue. Other seasons include Lent, Easter, and Pentecost.