Vimshottari Dasha Explained
The Vimshottari dasha is a 120-year cycle of planetary periods, and it is the timing system most Vedic readings rely on. Where the chart describes disposition, the dasha describes sequence: which planet is said to govern which stretch of a life, and therefore when the themes a chart carries are traditionally expected to come forward.
The nine periods and their lengths
The cycle allots a fixed span to each of nine bodies, totalling 120 years: Ketu 7, Venus 20, Sun 6, Moon 10, Mars 7, Rahu 18, Jupiter 16, Saturn 19 and Mercury 17.
The order is fixed and always runs in that sequence. What differs between charts is where in the sequence a life begins, and how much of that first period had already elapsed at birth.
Why it begins at your nakshatra
Each of the twenty-seven nakshatras is assigned one of the nine planets as its lord, in a repeating sequence. The dasha a person is born into is the one belonging to the lord of the Moon's nakshatra at birth.
The Moon's exact degree within that nakshatra decides the fraction of the period already spent. Somebody born at the very start of Ashwini begins a full seven-year Ketu period; somebody born near its end begins with only a few months of it remaining.
Mahadasha, antardasha and the levels below
The major period is the mahadasha. Each mahadasha subdivides into nine antardashas — sub-periods governed by each of the nine planets in the same fixed order, proportioned to their own lengths. Traditional readings are usually given at this level, because a nineteen-year Saturn mahadasha is too coarse to say anything useful about a particular year.
The subdivision continues further — pratyantardasha and below — though practice varies on how far down it is worth reading.
How it is read
Traditionally the period is interpreted through the condition of its lord in the chart: which house that planet occupies, which houses it rules, its dignity, and what aspects it. The same mahadasha is therefore read quite differently in two different charts.
AaradhyaHub's free Kundli lays out the full sequence with dates, marks the period running now, and shows the antardashas within it.
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Why is my dasha different from someone born the same day?
Because the starting point depends on the Moon's exact degree within its nakshatra, which changes through the day. Two births hours apart can begin at different points in the same period, and occasionally in different periods.
Does a Saturn or Rahu period mean something bad is coming?
No. The tradition associates these periods with demanding themes, but it also reads every period through the condition of its lord in the individual chart, where the same planet may be well placed. Nothing in a dasha is a prediction of an event.
Is Vimshottari the only dasha system?
No. Classical astrology describes many — Ashtottari, Yogini, Chara and others. Vimshottari is much the most widely used in Indian practice, and it is the one calculated here.
Read next
- Nakshatra — the 27 Lunar Mansions — What a nakshatra is, how the 27 lunar mansions and their padas work, and why the Moon's nakshatra starts your dasha. Find yours free.
- Lagna (Ascendant) in a Kundli — What the lagna or ascendant is, why birth time decides it, and how it sets every house in a Vedic birth chart. Calculate yours free.
- Navamsa (D9) Chart Explained — What the navamsa or D9 chart is, how it is derived from the birth chart, and why it is read for marriage. Generate both free.