P90X3 is a 30-day, 3-workout-per-day fitness program developed by Beachbody. It's a condensed version of the popular P90X program, designed to provide a comprehensive workout in a more time-efficient manner. Each workout session is approximately 30 minutes long, making it easier for individuals with busy schedules to fit exercise into their daily routine. The program includes a variety of workouts targeting strength, cardio, flexibility, and balance, among other fitness components.