The Persian/Medieval timing technique transmitted by Abu Ma'shar and Guido Bonatti. Calculate the periods and sub-periods when each planet rules your life.
Firdaria (Arabic: al-firdariyyat, of Persian origin) is a medieval Islamic astrology timing technique that divides life into planetary periods. It was first systematically described by the 9th-century Baghdad astrologer Abu Ma'shar (Albumasar), and later transmitted by Bonatti, Schoener, and William Lilly among other important figures of the European tradition.
The firdaria system assigns each segment of years to the rulership of a specific planet from birth. For diurnal births the sequence begins with the Sun, for nocturnal births with the Moon. Each major period is further divided into sub-periods, creating a more detailed timing map.
In the firdaria system, seven traditional planets and two lunar nodes form a 75-year cycle:
Diurnal births follow this sequence from the Sun, while nocturnal births begin from the Moon.
Three essential pieces of information are required for firdaria calculation:
This calculator automatically shows your current major period, sub-period, and the start dates of future periods after you enter your birth details.
Firdaria periods gain meaning when read alongside your natal chart. The ruling planet of the current major period is interpreted according to its position, house placement, and aspects in your chart. For example, a person in a Jupiter firdaria period may experience significant events in the areas of life represented by Jupiter's natal house.
Sub-periods refine the main theme. When a Venus sub-period begins within a Saturn major period, one can expect a time when themes of responsibility and structure intersect with relationships or aesthetics.
Firdaria can be used on its own, but yields much stronger results when combined with other traditional timing techniques:
When multiple techniques point to the same planet or theme, it strengthens the significance of that period.
This tool offers both the nodes-included (75-year) and nodes-excluded (70-year) calculation methods. You can switch between the two approaches and compare the results.
Yes. Whether the Sun is above or below the horizon at birth determines the sequence of periods. Without birth time, the diurnal/nocturnal distinction cannot be made, resulting in an incorrect sequence.
No period is inherently "bad." The quality of a period depends on the ruling planet's condition in the natal chart. A well-placed Mars can bring a productive and energetic Mars period.
They are different techniques. Profection shows the active house through annual progressions; firdaria defines multi-year planetary periods. When used together, they complement each other.
When the 75-year cycle is complete, according to classical sources the sequence repeats from the beginning.
The natal chart is the most common application, but some medieval astrologers also applied firdaria periods in mundane (world) astrology.