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Darian calendar. The Darian calendar is a proposed system of timekeeping designed to serve the needs of any possible future human settlers on the planet Mars. It was created by aerospace engineer, political scientist, and space jurist Thomas Gangale in 1985 and named by him after his son Darius.
Mars' Calendar. Time on Mars is easily divided into days based on its rotation rate and years based on its orbit. Sols, or Martian solar days, are only 39 minutes and 35 seconds longer than Earth days, and there are 668 sols (687 Earth days) in a Martian year.
months to fill a tropical Martian year that begins at the vernal equinox. The Zubrin calendar also uses a tropical year that starts at the vernal equinox but uses 12 nonuniform months. The two uniform calendars have been criticized for choosing the vernal equinox as their defining point
22 sie 2012 · Clicking the image above will produce a .pdf file containing these tables: Events of the Martian calendar year, the 22-Year intercalation cycle, and a perpetual calendar for Mars. Calendar conversion.
One of the calendars that does address this issue is the Darian Calendar. It was developed by Thomas Gangale in 1998, and a varying intercalation schema was added in 2006.
Timekeeping on Mars. (In red) Martian season lengths and time as compared to seasons on Earth (in blue), with marks for the vernal equinox, perihelion, and aphelion. Though no standard exists, numerous calendars and other timekeeping approaches have been proposed for the planet Mars.
Each martian year has 668.5907 martian days. To have an accurate calendar, leap years are added. In 10 years, there will be 6 years of 669-day-year (leap year), and 4 years of 668-day-year (common year).
