Jimmy Butler clocked in at 3:30 a.m. on Tuesday so he could work out before the Miami Heat held their first practice of the season.

The Heat practiced at 10 a.m. As we all know, however, Butler has a world-class work ethic and likes to start training early in the morning.

Per Ira Winderman of the South Florida Sun-Sentinel:

So after a series of 4 a.m. workouts at AmericanAirlines Arena last month, the Heat's offseason free-agent star addition was up bright and early Tuesday for the start of training camp at Keiser University.

“Just a little extra work while y'all in your third dream. I like to get it in,” he said following the first of two-a-days. “How did I get in today? I clocked in at 3:30. You're asleep, right?”

Jimmy Butler averaged 18.7 points, 5.3 rebounds and 4.0 assists last season while shooting 46.2 percent from the field, 34.7 percent from beyond the arc and 85.5 percent from the free-throw line.

The new Heat star has worked so hard for everything he has gotten, so when he sees other players not working as hard as him, he’s going to have a problem with it and let people know.

The Heat believe Butler will be on his best behavior in South Beach since he's playing for Pat Riley and Erik Spoelstra. We'll see if that comes to fruition.