“A calendar is a leap month calendar if: it divides time into years which are more-or-less in...Leap month calendar
“A lunisolar calendar is a calendar whose date indicates both the moon phase and the time of the...Lunisolar calendar
“A lunar calendar is a calendar oriented at the moon phase. This is normally done by having a...Lunar calendar
“A solar calendar is a calendar whose dates indicate the position of the earth on its revolution...Solar calendar
“A leap week calendar is a reformed calendar system in which each year consists of a whole number...Leap week calendar
“An arithmetic calendar is a calendar whose dates can be calculated solely by arithmetic means...Arithmetic calendar
This category has the following 16 subcategories, out of 16 total.