<Tr> <Th_colspan="2"> Season chronology </Th> </Tr> <Tr> <Td_colspan="2"> ← Previous Season 42 </Td> </Tr> <P> The forty - third season of the NBC comedy series Saturday Night Live premiered on September 30, 2017 with host Ryan Gosling and musical guest Jay - Z during the 2017--2018 television season . Like the final four episodes of season 42, season 43 is being broadcast live in all four time zones within the contiguous United States . </P> <P> Prior to the start of the season, Bobby Moynihan (a cast member since 2008), Vanessa Bayer (a cast member since 2010), and Sasheer Zamata (a cast member since 2014) left the cast . </P>

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