13-month calendar where every date is fixed to a day of the week
The International Fixed Calendar (also known as the IFC, Cotsworth plan, the Cotsworth calendar and the Eastman plan) is a proposed calendar reform designed by Moses B. Cotsworth, first presented in 1902.[1] The International Fixed Calendar divides the year into 13 months of 28 days each. A type of perennial calendar, every date is fixed to the same weekday every year. Though it was never officially adopted at the country level, the entrepreneur George Eastman instituted its use at the Eastman Kodak Company in 1928, where it was used until 1989.[2] While it is sometimes described as the 13-month calendar or the equal-month calendar, various alternative calendar designs share these features.
^Cotsworth 1904.
^Exhibit at George Eastman House, viewed June 2008
and 28 Related for: International Fixed Calendar information
The InternationalFixedCalendar (also known as the IFC, Cotsworth plan, the Cotsworth calendar and the Eastman plan) is a proposed calendar reform designed...
Holocene calendar Indian national calendarInternationalFixedCalendar Invariable Calendar Jalali calendar Javanese calendar Juche era calendar Julian...
Monday. The InternationalFixedCalendar is a more modern descendant of this calendar. Around 1930, one James Colligan invented the Pax Calendar, which avoids...
calendar, such as the World Calendar, the InternationalFixedCalendar, the Holocene calendar, and the Hanke–Henry Permanent Calendar. Such ideas are mooted...
Gregorian calendar: Holocene calendarInternationalFixedCalendar (also called the International Perpetual calendar) World Calendar World Season Calendar Leap...
This is a list of calendars. Included are historical calendars as well as proposed ones. Historical calendars are often grouped into larger categories...
perpetual calendar. List of calendars World Season Calendar, proposed by Isaac Asimov in 1973, with similarities to the World CalendarInternationalFixed Calendar...
Sunday. Unlike other perennial calendar reform proposals, such as the InternationalFixedCalendar and the World Calendar, it preserves the 7-day week by...
systems for a period of time. InternationalFixedCalendar Positivism Religion of humanity Secular humanism World Calendar Hayes, Edward Cary; Weatherly...
and 9 days are interrupted to fit into the 210-day cycle. The InternationalFixedCalendar (also known as the "Eastman plan") kept a 7-day week while defining...
Hermetic Lunar Week Calendar uses moon phases, resulting in weeks of six to nine days. The InternationalFixedCalendar and World Calendar both use 364-day...
sustainability Sol, an additional summer month in the proposed InternationalFixedCalendar Sol, a beer produced by the Cuauhtémoc Moctezuma Brewery Senator...
Calendar, the InternationalFixedCalendar and the Pax Calendar. Technically, these are not perpetual calendars but perennial calendars. Their purpose...
(=Rev. Hugh Jones) (1745); The Positivist calendar, by Auguste Comte (1849); and the InternationalFixedCalendar, by Moses B. Cotsworth (1902), and championed...
Unlike certain proposed calendar reforms such as the World Calendar and InternationalFixedCalendar, there are no exceptions to the 7 day cycle of the week...
two types of feasts in the Orthodox Church calendar: fixed and movable. Fixed feasts occur on the same calendar day every year, whereas movable feasts change...
are also permanently fixed. Unlike the World Calendar or the InternationalFixedCalendar (also known as the 13-Month Calendar), there are no individually...
The Hebrew calendar (Hebrew: הַלּוּחַ הָעִבְרִי, romanized: HaLuah HaIvri), also called the Jewish calendar, is a lunisolar calendar used today for Jewish...
churches Revised Julian calendar, calendar used by some Eastern Orthodox churches Liturgical year, annually recurring fixed sequence of Christian feast...
establish a fixedcalendar to be generally observed." The term "fixedcalendar" is generally understood to refer to the non-intercalated calendar. Others...
The Hindu calendar, also called Panchanga (Sanskrit: पञ्चाङ्ग), is one of various lunisolar calendars that are traditionally used in the Indian subcontinent...
000-year-old calendar system in Warren Field, Aberdeenshire. This calendar is the next earliest, or "the first Scottish calendar". The Sumerian calendar was the...
The Solar Hijri calendar is a solar calendar and one of the various Iranian calendars. It begins on the March equinox as determined by the astronomical...
to create fixed arithmetical rules to determine the start of each calendar month. The best known of these is the Tabular Islamic calendar: in brief,...
The Assamese Calendar (Assamese: ভাস্কৰাব্দ, lit. 'Bhāskarābda') is a Lunisolar calendar, followed in the Indian state of Assam. The New Year in the Assamese...
Derbyshire International Football Cup, the original name for the UEFA Intertoto Cup InternationalFixedCalendar, a calendar proposal International Freedom...
approximately one day every four years. Likewise in the Egyptian calendar, a fixed year of 365 days was in use, drifting by one day against the sun in...
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