Starship can get to Mars in 3-4 months. It depends mainly upon how much payload you carry. Elon has discussed crewed Starships making the trip in 3-4 months to

Starship can get to Mars in 3-4 months. It depends mainly upon how much payload you carry. Elon has discussed crewed Starships making the trip in 3-4 months to minimize radiation exposure, and cargo Starships maximizing payload mass and taking the 9 month Hohmann low energy orbit.