On January 7, 2010, multiple media outlets reported that beginning March 1, 2010, Leno would move from his 10 p.m. weeknight time slot back to the traditional "Tonight Show" slot at 11:35. Under this proposal, Leno's show would be shortened from an hour to 30 minutes, which would make the monologue, Leno's most popular segment, the essence of the program. This would move "The Tonight Show" to 12:05 a.m., a post-midnight start for the first time in its sixty-year history, while "Late Night with Jimmy Fallon" would be pushed to 1:05am, and "Last Call with Carson Daly" would likely be cancelled. Under NBC's (later contested) interpretation of O’Brien's contract, the host was only guaranteed "The Tonight Show" in name rather than the 11:35pm slot with which it was synonymous.