The Kuiper Calendar at a Glance

Year Published 2001
Days per Week 7
Days per Month 55-56
Months per Year 12
Base Year Length 667
Leap Days 1-2
Leap Day Position undefined
Basic Intercalation Formula 37x667 + 668
Extended Intercalation Formula
(\ denotes integer division)
Y\38 + 2*(Y\590)
Mean Length of Calendar Year 667.0526
Base Astronomical Year Winter Solstice
Accuracy <1 year
Cycle of Perpetuity undefined
Mean LS of Beginning of Year 270.0
Year Count Start undefined
Epoch (CE) undefined
Epoch (JD) undefined
12-Month Naming Convention Biographical Days
1st Month Copernicus 55
2nd Month Brahe 55
3rd Month Kepler 56
4th Month Galileo 56
5th Month Lowell 55
6th Month Wells 56
7th Month Burroughs 55
8th Month Asimov 56
9th Month Bradbury 56
10th Month Moorcock 55
11th Month Robinson 56
12th Month NASA 56
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

Notes:

  1. The calendar year is short by one day.

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

  3. Other types of 12-month calendars are:

Document Martian Calendar
Roger E. Kuiper
Calendar Calendar
Martian Time

Martian Time

Martian Time Survey

Martian Time Survey 2.2