“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 World Calendar is a proposed reform of the Gregorian calendar created by Elisabeth Achelis...World Calendar
“The fictional Christian Calendar, also known as Biblical Calendar, originally is an adapted...Christian Calendar
“The Modern Calendar is a calendar reform proposal featuring an eight-day week and nine of its...Modern Calendar
“The International Standard Calendar is based upon the rules laid out in the international...International 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.