According to the Christmas tradition, decorations are typically taken down the day after Christmas, on the 26th of December. This is considered the "Twelfth Day of Christmas" and is also known as "Epiphany" or "Little Christmas". Taking down the decorations after this date is believed to bring bad luck, so it's recommended to leave them up until at least the 6th of January, which is when the Christmas season officially ends. However, some people choose to keep their decorations up until the end of January or even until February.