http://www.humanreligions.info/tags/religious_calendars.html
Main page:
Calendar of Annual Religious Special Days and FestivalsHuman Truth Foundation pages (12):
Christianity, in the following sections:
Zoroastrianism: 1. Calendar (2023)
Wicca - The Rise of a Western Mystery Religion Based on Witchcraft: 1. Calendar (2023)
The Bahá'í Faith: 2. Calendar (2023)
Modern Paganism (Neopaganism): 1. Calendar (2023)
Islam: A Critical Look at Contemporary Issues: 3. Calendar (2023)