High Quality Content by WIKIPEDIA articles! The sixth season of the American television comedy The Office premiered in the United States on NBC on September 17, 2009, and concluded on May 20, 2010. The season consisted of 22 half-hour episodes, and 2 hour-long episodes to comprise the 26 total episodes of material created. The Office is an American adaptation of the British TV series of the same name, and is presented in a mockumentary format, portraying the daily lives of office employees in the Scranton, Pennsylvania branch of the fictitious Dunder Mifflin Paper Company.