The Welton Calendar at a Glance

Notes:

1. The calendar is mistakenly based on the number of Martian sidereal days in a Martian year.

2. The calendar is similar in structure to the Darian calendar, but was developed independently. It uses a different intercalation scheme (involving 670-sol and 671-sol leap years).

3. This is one of several Symmetric Double Gregorian Martian calendars, which generally have the following characteristics:

   • Divide the Martian year into 24 months of approximately equal in duration to encompass the longer Martian year.

   • Retain the seven-day week.

   • Begin the year near the Winter solstice.

   • Place the leap day(s) month(s) corresponding to February.

   • Base the month names on the traditional Roman names, plus some additional naming scheme.

4. Other types of 24-month calendars are:

   • Asymmetric Vernal Equinox Martian calendars

   • Symmetric Summer Solstice Martian calendars

   • Symmetric Vernal Equinox Martian calendar

	Martian Calendar for SHARDS Universe Rachel Ann Welton
	Calendar
	Martian Time
	Martian Time Survey 2.2