Recently, Elon Musk said in an interview with Time magazine

Recently, @Elon Musk, in an interview with Time magazine, said that no one could land on the moon in two years and send a man to it in another year or two, so that for up to four years, man would return to the moon. Of course, it’s "Musk Time" and it knows… In addition, he said, it would probably be easier to land a spacecraft directly on the moon than to convince NASA that he was capable of landing on the moon. Well, it’s Musk…# 50 Years of Human Landing on the Moon#