“The Hermetic Lunar Week Calendar (HLWC) is a proposal for calendar reform by Peter Meyer. It is...Hermetic Lunar Week Calendar
“The Petin-Meton calendar or New World Calendar is a lunisolar calendar with 7- and 8-day weeks...Petin-Meton calendar
“The Tetraeteric calendar is a lunar (partially lunisolar) calendar invented by Hellerick in...Tetraeteric Calendar
“The Palmen-McKenna Calendar is a lunar calendar invented by Karl Palmen where each lunar year...Palmen-McKenna Calendar
This category has the following 2 subcategories, out of 2 total.