Calendars

• The Martian Business Calendar – My proposal for a no-frills perpetual calendar for Mars with leap weeks, designed primarily to meet the needs of commerce and religion.
  • [ The Martian Business Calendar ] – The calendar described in full.
  • [ MBC with numbered months ] – An unabridged version of the calendar with numbered months.
  • [ MBC with month names ] – An unabridged version of the calendar with named months.
• [ Martian Time ] – Decimal time units for Martian colonists.
• [ Leap Year Calculation ] – My proposal for replacing the Gregorian leap year rules with alternative rules.

Further Reading

• [ Martian Time ] – A comprehensive review of Martian timekeeping, including an outline of many Martian calendars.
• [ The Symmetry454 Calendar ] – A proposal for a leap week calendar to replace the Gregorian calendar, and the source of inspiration for my Martian calendar.
• [ Hebrew Calendar Science and Myths ] – A good page that describes the calculation of the Hebrew calendar.