“The World Season Calendar (WSC) is a proposal for calendar reform by author Isaac Asimov. In...World Season Calendar
“The International Fixed calendar (also known as the International Perpetual calendar, the...International Fixed Calendar
“The fictional Christian Calendar, also known as Biblical Calendar, originally is an adapted...Christian Calendar
“The Perpetual Christian Calendar does not change any names and does not alter the months of the...Perpetual Christian Calendar
“The International Standard Calendar is based upon the rules laid out in the international...International Calendar
“The Symmetry010 Calendar (Sym010) is a proposal for Gregorian calendar reform developed by Dr...Symmetry010 Calendar
This category has only the following subcategory.
- [+] Leap Week Calendars (2 C, 35 P, 3 F)
Pages in category "Perpetual calendars"
The following 20 pages are in this category, out of 20 total.