The Forward Calendar at a Glance

Year Published 1991
Days per Week 7
Days per Month N/A
Months per Year none
Base Year Length 668
Leap Days 1
Leap Day Position vernal and autumnal equinoxes
Basic Intercalation Formula 2x668 + 3x669
Extended Intercalation Formula
(\ denotes integer division)		 undefined
Mean Length of Calendar Year undefined
Base Astronomical Year Winter Solstice
Accuracy undefined
Cycle of Perpetuity 7 days
Mean LS of Beginning of Year 270.0
Year Count Start 0
Epoch (CE) 1999 Dec 24
Epoch (JD) 2451537
 
7-day Naming Convention English
1st Day Sunday
2nd Day Monday
3rd Day Tuesday
4th Day Wednesday
5th Day Thursday
6th Day Friday
7th Day Saturday

Note:

This is one of several 0-month calendars.

Document Excerpts from Martian Rainbow
Robert L. Forward
Calendar Calendar
Martian Time

Martian Time

Martian Time Survey

Martian Time Survey 2.2