This calendar is constructed according to the understanding of the Occidental Temple of the Wise Lord. The Gahambars and Jashnes included here are the ones presented in The Good Religion by Darban-i-Den. The purposes of the calendar are 1) to give the correct dates of the Gahambars and Jashnes for the year, and 2) to keep track of the Mazdan days and months/Zodiac houses for the practice of the curriculum given in Original Magic.
The Mazdan months determine the overall structure of the calendar. In order to achieve this, the standard and familiar Gregorian calendar structure has been abandoned. This is done with the idea that using the traditional Zoroastrian structure will help Mazdan practitioners to mentally reframe their understanding of time measurement from the less useful Gregorian system to the more useful Mazdan system. The Gregorian calendar is out of tune with the natural cycles of the sun and the Zodiac whereas the Mazdan calendar is a reflection of the cycle of the Zodiac which enables access to all of the forces of the cosmos. The Mazdan practitioner attunes to the solar and astronomical structure of the cosmos through the Mazdan year, months and days. Therefore, this calendar contains twelve months of exactly thirty days each, with the addition of a thirteenth page which contains the five days of Hamaspathmaidyem. Note that in some years, such as 3754 and 3755 ZRE, a sixth, “leap day” of Hamaspathmaidyem must be added, which is called Avardad-Sal-Gah.
The Mazdan calendar is, however, keyed to the Gregorian calendar, but in a way that is as minimally intrusive to the Mazdan structure as possible: the Gregorian days are given with their corresponding Mazdan days (these will differ from year to year depending on the exact time of the Vernal Equinox).
The Mazdan month names and day names are given in the original Avestan language, with the understanding that learning and using the earliest forms would be the most useful for the practitioner. The linguistic variations of these names are great in the descendant languages. The thirty days in the Mazdan month are each dedicated to a Yazata. Four of these days are dedicated to Ahura Mazda. See Original Magic for a detailed explanation of the thirty Mazdan days and their corresponding Yazatas.
See The Good Religion for explanation of the Gahambars and Jashnes. The names of the Gahambars and Jashnes are given in Farsi because they are the most familiar forms and this is the form in which they are given in The Good Religion. To give these in Avestan could be confusing to the new practitioner. Perhaps in later years of the Mazdan calendar these will also be given in Avestan, or perhaps it will be preferable for both forms to be given.
The Mazdan calendar is keyed to the exact time of the Vernal Equinox, which begins the Mazdan year. As the Equinox may be on a different Gregorian day each year, any Zoroastrian calendars which generalize the Vernal Equinox to March 21st are not accurate: a new Zoroastrian/Mazdan calendar must be made each year which begins on the exact day of the Vernal Equinox in that year.
Mazdan days begin at sunrise, not at 12:00 midnight. Therefore, any phenomenon which occurs on any given day after 12:00 midnight but before the following sunrise must be counted as part of the previous day. This principle has been applied to all phenomena in this calendar. Therefore the dates given here may differ from those given on other calendars by one day. However, the reckoning in this calendar is a closer reflection of the actual times of these events as determined in the Mazdan tradition.
The dates of the Gahambars and Jashnes are given in The Good Religion (and usually elsewhere) according to their Gregorian calendar dates. However, the dates of the Gahambars and Jashnes are determined by the Mazdan day of the month: each occurs on a specific Mazdan day. As Mazdan days may land on different Gergorian days from year to year, the dates of the Gahambars and Jashnes given in this calendar do not match the Gregorian dates which are usually given for them: their Mazdan dates in this calendar can be up to two days earlier in any given year than their generalized Gregorian dates.
The dates given in the the Mazdan calendar reflect the time zones of North America. For other parts of the world, the dates could vary up to one day. Mazdans in other parts of the world may wish to adapt this calendar to their own time zones in order to have an accurate calendar for their locations.
The Occidental Temple of the Wise Lord recognizes several non-Mazdan festival days, namely, Easter, Christmas and Purim. These are given here according to their Gregorian calendar dates. The result of this, combined with the Gregorian dates for the Mazdan festival days occuring within a range of about two days in any given year (because the Vernal Equinox occurs between March 19th and March 21st) is that Zarathusthra’s Death day can come before, during or after Christmas day in any given year.
The Mazdan calendar cannot use the Gregorian reckoning of years because the Mazdan year starts on the Vernal Equinox in March: the Mazdan year occurs within most of one Gregorian year and almost three months of the next Gregorian year. Therefore, a Mazdan reckoning of years must be used. The OTWL generally uses the ZRE (Zoroastrian Religious Era) system, which began on the northern Vernal Equinox of 1737 BC. This was the dawn of the Age of Aries and is considered to be the beginning of the mission of Zarathusthra.
Below is the Mazdan Calendar for the year 3755 ZRE (Zoroastrian Religious Era), which begins on March 19, 2017 and ends on March 19, 2018, and the Mazdan Calendar for the year 3756 ZRE, which begins on March 20, 2018 and ends on March 19, 2019. The Mazdan month names and Zodiac names are given along with English translations. Within each month, the Mazdan day numbers and names are given along with the Mazdan celebrations.
The calendar presented here uses the Tropical Zodiac, which is connected to the seasonal celebrations, in particular Nowruz (the Vernal Equinox). The Occidental Temple of the Wise Lord also has another calendar which uses the Sidereal Zodiac (the Mazdan months are aligned to the visible Zodiac constellations). The Sidereal Mazdan calendar is therefore proposed to be the original ancient form of the Mazdan calendar. The Sidereal Mazdan calendar is used for esoteric purposes and is available only to members of the Temple who have completed or are engaged in the curriculum from Original Magic.