The ninth day of the Lunar year, is named Young after the ninth human being who set foot on the Moon's surface; John W. Young.
Young stepped down from the LM ladder onto the Moon at 3-11-02 ∇ 13:39 LST.
Young made his fourth space flight as spacecraft commander on Apollo 16, between the dates 3-10-27 ∇ and 3-11-08 ∇, Lunar reckoning. With him was Charlie Duke and together they set up scientific equipment and explored the lunar highlands at Descartes.
Young was also Command Module Pilot of Apollo 10, as well as backup spacecraft commander for Apollo 13 and 17.