⏳ Firdaria Calculator: Medieval Planetary Periods

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📘 About the Firdaria

Firdaria (from Persian 'fardār') are planetary periods used by Abu Ma'shar and by medieval European astrologers such as Guido Bonatti. Life is divided into a 75-year cycle; each planet and the lunar nodes rule a fixed number of years.

Day births begin with the Sun's 10 years, night births with the Moon's 9. Each planetary period is split into seven equal sub-periods. Enter your birth date and whether you were born by day or night.

✏️ Worked example

Born 15 June 1990, day birth

You enter
Date of Birth15 Jun 1990
Born by day or night?Day (between sunrise and sunset)
For the Date14 Oct 2026
You get
Current firdar (main time lord)☽ Moon — ages 31 to 40
Sub-period lord☉ Sun (Thu, 6 Aug 2026 – Fri, 19 Nov 2027)
SequenceDay birth — starts with the Sun; the full cycle is 75 years
Age now36.3 years

☽ Moon — ages 31 to 40; ☉ Sun (Thu, 6 Aug 2026 – Fri, 19 Nov 2027).

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❓ Frequently asked questions

How long is each firdaria period?

Sun 10, Venus 8, Mercury 13, Moon 9, Saturn 11, Jupiter 12, Mars 7, North Node 3 and South Node 2 years — 75 in all.

How do I know if I was born by day?

If you were born between sunrise and sunset; the rising sign calculator tells you exactly.

What are sub-periods?

Each planet's period is divided into 7 equal parts ruled in turn by the seven planets, starting with the period's own lord.

Is this scientific?

No. Astrology has no scientific support; these tools reproduce historical medieval methods for interest and entertainment.

What people are saying
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Anonymous · 14 Oct 2026