“The Igbo calendar (Ògụ́àfọ̀ Ị̀gbò) is the traditional calendar system of the Igbo people of...Igbo calendar
“The Coptic calendar, also called the Alexandrian calendar, is used by the Coptic Orthodox...Coptic calendar
“The Palmen-McKenna Calendar is a lunar calendar invented by Karl Palmen where each lunar year...Palmen-McKenna Calendar
“A calendar with ten regular and one leap month, where each month has exactly five weeks of seven...Month length
“The Gregorian system in a new conception and layout, as a new style which combines solar and...13+13
This category has the following 2 subcategories, out of 2 total.