“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 World Calendar is a proposed reform of the Gregorian calendar created by Elisabeth Achelis...World Calendar
“The Symmetry454 Calendar (Sym454) is a proposal for Gregorian calendar reform developed by Dr...Symmetry454 Calendar
“The Modern Calendar is a calendar reform proposal featuring an eight-day week and nine of its...Modern Calendar
This category has only the following subcategory.
- [+] Leap Week Calendars (2 C, 35 P, 3 F)
Pages in category "Perpetual calendars"
The following 21 pages are in this category, out of 21 total.