Martian calendar
- Units
- Sol (Martian day) (ENT Novel: Beneath the Raptor's Wing)
- Months
- Leo (ENT Novel: Beneath the Raptor's Wing)
- Capricorn (ENT Novel: Beneath the Raptor's Wing)
- Libra (ENT Novel: To Brave the Storm)
- Correspondences
- July 29, 2155 = Sol 25 of Leo (ENT Novel: Beneath the Raptor's Wing)
- June 21, 2156 = Sol 5 of Capricorn (ENT Novel: Beneath the Raptor's Wing)
- May 2, 2160 = Sol 49 of Libra, Sol 209 of year 107 Zubrin Calendar (ENT Novel: To Brave the Storm)
- Reference in To Brave the Storm points towards Robert Zubrin's martian calendar, but various significant flaws lead the Darian Martian calendar to be more applicable (converter here), and is used in Watching the Clock.