In the introduction to the ancient Egyptian calendar you discover the several calendars utilized by the ancient Egyptians and what celestial or seasonal events synchronize them. Topics covered include the lunar, solar, celestial and regnal calendars, as well as the so-called horoscope calendar of lucky and unlucky days. Find the calendar online at https://www.reconstructingancientegypt.org/kamat/beginning-of-time-and-the-end-of-eternity-calendar-of-ancient-egypt/