Saturday Night Live, season 42

The forty-second season of the NBC sketch comedy series Saturday Night Live premiered on October 1, 2016, during the 2016–2017 television season, with host Margot Robbie and musical guest The Weeknd, and concluded on May 20, 2017, with host Dwayne Johnson and musical guest Katy Perry. The season removed two commercial breaks per episode in order to increase programming time. Episode 18 on April 15, 2017, was the first episode to be broadcast live in all four time zones within the contiguous United States. Until this episode, the show aired live only in the Eastern and Central time zones, and was tape-delayed in the Mountain and Pacific time zones.