The 12 days of Christmas are traditionally celebrated between December 25th and January 6th. It is a period of celebration and festivities, often marked by special traditions and customs. During this time, people typically exchange gifts, sing carols, and participate in various activities related to Christmas and the holiday season. The exact dates can vary depending on the region or country, but the period usually begins on December 25th and ends on January 6th, the date of the Epiphany.