Twelfth Night Date 2024. Twelfth night is observed on january 5 or 6, twelve days after christmas, depending on whether the tally began A count of exactly 12 days from 25 december arrives at january 5th.

Carnival’s beginning, twelfth night, is a fixed date, but its ending, midnight on mardi gras, is movable. Epiphany eve, known as twelfth night, is celebrated 12 nights after the first night of christmas, on december 25 and into 26.