When Is Mardi Gras 2025 Start And End. Mardi gras is set 47 days before easter, and it falls on a tuesday between feb. The mardi gras season, also known as carnival, begins on january 6th and ends on march 4th, 2025.
The first mardi gras celebration in the u.s. 6, which is king’s day (feast of the epiphany).