"We are glad to have Jason back with us," general manager Elgin Baylor said in a statement. "He played an important role for us when he was here previously, and we think he will be a valuable component this time as well."
Hart, who attended high school in nearby Inglewood, rejoins the Clippers after averaging 2.9 points, 1.5 assists, 1.0 rebound and 10.6 minutes in 57 games for the Jazz last season. He played in just two of Utah's 12 playoff games.
Hart joined the Jazz as a free agent after splitting the 2006-07 season between the Sacramento Kings and the Clippers, averaging 9.0 points and 4.0 assists in 23 games for Los Angeles. He enjoyed his best NBA season with Charlotte in 2004-05, averaging 9.5 points, 5.0 assists and 1.1 rebounds in 74 games.
The 32-year-old Knight, who joined the Clippers as a free agent in August, averaged 4.6 points, 1.9 rebounds and 4.4 assists and 22.6 minutes in 74 games last season. He finished second in the NBA with a 4.62-1 assists-to-turnover ratio.