The Zubrin Calendar at a Glance

Notes:

1. The calendar is based on the oversimplified ratio of 15 Earth years to 8 Martian years, resulting in a calendar year that is short by 2.6 days.

2. This is a Asymmetric Zodiacal Martian calendar, wiich is defined as generally having the following characteristics:

   • Divide the Martian year into 12 months, symmetrically stretched to encompass the longer Martian year.

   • Retain the seven-day week.

   • Begin the year on the vernal equinox

   • Place the leap day(s) at the end of the year.

   • Base the month names on the zodiacal constellations

3. Other types of 12-month calendars are:

   • Asymmetric Gregorian Martian calendars

   • Symmetric Gregorian Martian calendars

   • Symmetric Zodiacal Martian calendars

	Annus Martis Robert Davis
	Zubrin's Mars Calendar Peter Kokh
	Martian Calendar/Time/Date Matt Oltersdorf
	A Calendar for Mars Robert Zubrin
	Excerpts from The Case for Mars Robert Zubrin
	Calendar
	Martian Time
	Martian Time Survey 2.2