Crossword clues for Martian day 3 letters:SOLMartian daySOLMartian day (24 hours, 39 minutes and 35 seconds)SOLOne day, in "The Martian"SOLMartian period of one dayYEARAbout 687 Martian daysPHOBOSMoon that orbits Mars about three times each Martian daySOLSMars days, in "The Martian"