What is Vimshottari Dasha?

Vimshottari Dasha (Sanskrit for 'one hundred and twenty') is the principal Vedic astrological timing system. It divides a 120-year cycle across the nine grahas (Sun through Saturn, plus the lunar nodes Rahu and Ketu) in a fixed sequence with fixed year-durations. The starting point in the sequence is determined by the nakshatra the Moon occupies at birth. Each major period (Mahadasha) is then subdivided into nine sub-periods (Antardashas), and each Antardasha into nine sub-sub-periods (Pratyantardashas), forming a layered timing scaffold accurate to weeks.

What are the Vimshottari year durations?

The canonical year durations are fixed and must never be altered: Ketu 7 years, Venus 20 years, Sun 6 years, Moon 10 years, Mars 7 years, Rahu 18 years, Jupiter 16 years, Saturn 19 years, Mercury 17 years. Total: 120 years. These come from Brihat Parashara Hora Shastra and are repeated identically in Phaladeepika, Saravali, and every classical text. Any astrologer or tool that uses different durations is not following the classical Vimshottari system.

How is the starting Mahadasha determined?

By the nakshatra the Moon occupies at the moment of birth. The 27 nakshatras are mapped in groups of three to the 9 grahas: nakshatras 1, 10, 19 (Ashwini, Magha, Mula) are ruled by Ketu, so a person born under one of these starts in a Ketu Mahadasha. Nakshatras 2, 11, 20 are Venus. 3, 12, 21 are Sun. And so on. The exact starting age of the next Mahadasha is computed from how much of the natal nakshatra had elapsed at birth — this is why two people born on the same day in different cities can have very different starting points.

What does a Mahadasha activate?

A Mahadasha activates the themes of the planet whose period is running, modified by that planet's specific placement in your birth chart. The mature themes per classical tradition: Sun — authority, recognition, paternal matters; Moon — emotional life, mother, public reputation; Mars — energy, action, conflict, real estate; Mercury — communication, learning, commerce; Jupiter — wisdom, expansion, marriage, children; Venus — relationships, comfort, art, sensuality; Saturn — discipline, long-term work, slow ripening; Rahu — sudden expansion, foreign matters, ambition; Ketu — spiritual depth, separation, withdrawal. The actual experience depends on the planet's dignity and house lordships in your specific chart.

What is an Antardasha?

An Antardasha (also called Bhukti) is a sub-period within a Mahadasha. Each Mahadasha is divided into nine Antardashas — one for each graha in the same Vimshottari sequence. The duration of each Antardasha is proportional to its own Mahadasha length (so within a 20-year Venus Mahadasha, the Venus-Venus Antardasha runs about 3 years 4 months, while the Venus-Mars Antardasha runs about 1 year 2 months). The Antardasha refines the Mahadasha — it tells you which sub-theme of the running Mahadasha is active at any given moment.

What is a Pratyantardasha?

A Pratyantardasha is the third layer down — a sub-sub-period within an Antardasha. Each Antardasha is further divided into nine Pratyantardashas (again following the same Vimshottari sequence and proportional durations). The Pratyantardasha gives weeks-to-months level timing precision. Serious classical work also uses Sookshma (4th layer) and Prana (5th layer) but those are rarely consulted outside professional rectification work.

Are there other dasha systems besides Vimshottari?

Yes — Brihat Parashara Hora Shastra lists more than 30 dasha systems, including Ashtottari (108 years, used for some Moon-prominent charts), Yogini (36 years, popular in North India), Chara Dasha (Jaimini-school, based on signs not nakshatras), Kalachakra Dasha, and many more. Vimshottari is the most widely-used because BPHS gives it primacy and because empirical experience over centuries has shown it to be the most consistently reliable for events. AstroPal's primary dasha display is Vimshottari; other systems can be added in the chat by asking explicitly.

How does AstroPal use Dasha?

Vimshottari Dasha is at the core of every timing question in AstroPal. The chart shows your current Mahadasha and Antardasha (and the Pratyantardasha on click). The AI chat factors in the running dasha for every interpretive answer — when you ask about marriage timing, career change, or health windows, the system computes the answer from your dasha context. The dasha sequence is also a key input to the Compatibility module (Dasha Sandhi risk check) and the Muhurtha module (electional astrology evaluates the proposed date against the running dasha). All durations are canonical per the classical year-list.

Vimshottari Dasha Explicado

Vimshottari Dasha — el sistema védico de 120 años, explicado.

Por R. Sivadas · Fundador, AstroPal · Última actualización June 2026

Vimshottari Dasha es el andamiaje temporal de la astrología védica. Mientras que la carta natal describe QUÉ deparará la vida, el dasha te indica CUÁNDO. Esta página explica el cálculo clásico, las duraciones canónicas de los años, las tres capas (Mahadasha — Antardasha — Pratyantardasha) y qué activa el periodo de cada planeta — originados en Brihat Parashara Hora Shastra y Phaladeepika.

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Tu carta libre muestra tu Mahadasha actual. Los planes de pago (Seeker y superiores) muestran la secuencia completa de 120 años de Vimshottari con Antardashas y Pratyantardashas.

Qué es Vimshottari Dasha

The Sanskrit word vimshottari means “one hundred and twenty” — the number of years in the full cycle. The system divides this 120-year cycle across the nine grahas (Sun, Moon, Mars, Mercury, Jupiter, Venus, Saturn, Rahu, Ketu) in a fixed sequence with fixed durations. Each person's life maps onto this 120-year cycle starting at a specific point determined by their birth-Moon's nakshatra.

Source: Brihat Parashara Hora Shastra — the foundational Sanskrit text. The system is then repeated in Phaladeepika (Mantreshwara, ~13th c.), Saravali (Kalyana Varma), Jataka Parijata (Vaidyanatha), and every major classical authority.

Las duraciones canónicas de los años (nunca alterarlas)

La secuencia de Vimshottari y la duración de los años están fijadas por los textos clásicos. Cualquier astrólogo o herramienta que los varía, no utiliza el sistema clásico de Vimshottari. La secuencia es:

Ketu — 7 years
Venus (Shukra) — 20 years
Sun (Surya) — 6 years
Moon (Chandra) — 10 years
Mars (Mangala) — 7 years
Rahu — 18 years
Jupiter (Guru) — 16 years
Saturn (Shani) — 19 years
Mercury (Budha) — 17 years

Total: 120 años. Después de Mercurio, el ciclo vuelve a Ketu y se repite — aunque pocas personas viven para verlo ocurrir (el segundo ciclo regresa a los 120 años + primer Ketu y resto).

Cómo se calcula el Mahadasha inicial

El Mahadasha inicial está determinado por el nakshatra que ocupa la Luna en el momento del nacimiento. Los 27 nakshatras están asignados en grupos de tres sobre los 9 grahas:

Ketu's nakshatras: Ashwini, Magha, Mula (1st, 10th, 19th).
Venus's: Bharani, Purva Phalguni, Purva Ashadha (2nd, 11th, 20th).
Sun's: Krittika, Uttara Phalguni, Uttara Ashadha (3rd, 12th, 21st).
Moon's: Rohini, Hasta, Shravana (4th, 13th, 22nd).
Mars's: Mrigashira, Chitra, Dhanishta (5th, 14th, 23rd).
Rahu's: Ardra, Swati, Shatabhisha (6th, 15th, 24th).
Jupiter's: Punarvasu, Vishakha, Purva Bhadrapada (7th, 16th, 25th).
Saturn's: Pushya, Anuradha, Uttara Bhadrapada (8th, 17th, 26th).
Mercury's: Ashlesha, Jyeshtha, Revati (9th, 18th, 27th).

Una persona cuya Luna natal se sienta en Ashwini comienza su vida en un Ketu Mahadasha; una cuya Luna se sienta en Rohini comienza en Moon Mahadasha; y así sucesivamente.

La edad exacta de inicio —el momento en que comienza el siguiente Mahadasha— depende de cuánto del nakshatra natal hubiera transcurrido ya al nacer. Un niño nacido justo después de que Rohini comenzara tendrá casi 10 años completos de Moon Mahadasha para vivir; uno nacido justo antes de que Rohini termine tendrá solo unos meses. Por tanto, dos hermanos nacidos de los mismos padres en momentos diferentes pueden comenzar en puntos completamente distintos del ciclo. AstroPal calcula esto con precisión sub-arcosegundo mediante efemérides suizas.

Las tres capas — Mahadasha / Antardasha / Pratyantardasha

1. Mahadasha (el periodo principal)

La Mahadasha es la división de nivel superior: el planeta cuyo periodo domina de 6 a 20 años de tu vida, dependiendo de qué graha esté en marcha. La Mahadasha marca el color general de ese capítulo de la vida. Una persona en su Mahadasha de Júpiter vive un periodo diferente de 16 años al de alguien en su Mahadasha de Marte — aunque el resto de su carta sea idéntica.

2. Antardasha (también llamado Bhukti)

Cada Mahadasha se subdivide en nueve Antardashas — una para cada graha en la misma secuencia Vimshottari. La duración de cada Antardasha es proporcional: un Antardasha recibe su parte del Mahadasha progenitor igual al peso Vimshottari de ese planeta dividido por 120. Así que, en una Venus Mahadasha de 20 años:

Venus-Venus Antardasha: 20 × 20/120 = 3 años y 4 meses
Antardasha Venus-Sol: 20 × 6/120 = 1 año
Venus-Luna Antardasha: 20 × 10/120 = 1 año 8 meses
Venus-Marte Antardasha: 20 × 7/120 = 1 año 2 meses
... y así sucesivamente para cada uno de los 9.

El Antardasha refina el Mahadasha — te indica qué subtema del Mahadasha en curso se está activando en ese momento específico. La Antardasha Venus-Saturno dentro de una Mahadasha de Venus es una experiencia muy diferente de la Antardasha Venus-Júpiter, aunque ambas caigan bajo el mismo capítulo general de Venus.

3. Pratyantardasha (la capa semanal a mes)

Cada Antardasha se divide de nuevo en nueve Pratyantardashas usando la misma regla proporcional. Esto da una precisión temporal de semanas o meses — la resolución necesaria para una predicción seria de eventos. Más allá de Pratyantardasha hay dos capas más (Sookshma y Prana), pero rara vez se consultan fuera del trabajo profesional de rectificación.

Lo que suele activar el Mahadasha de cada planeta

Las firmas clásicas, según Phaladeepika y BPHS. La experiencia real depende de la dignidad del planeta y de los señoríos de casa en tu carta específica — un Saturno fuerte y bien colocado produce un Saturn Mahadasha muy diferente a uno afectado y debilitado.

Sun (6 years) — authority, recognition, government matters, paternal relationships, ego maturation, self-discovery as the centre of one's life.
Moon (10 years) — emotional life, mother, public reputation, fluctuating moods, popularity, the inner life surfacing.
Mars (7 years) — energy, action, conflict, sports, real estate, surgery, courage, siblings, competitive endeavour.
Mercury (17 years) — communication, learning, commerce, intellect, writing, networks, friends, intellectual maturation.
Jupiter (16 years) — wisdom, expansion, philosophy, teachers, marriage, children, prosperity, ethical maturation. Often the most beneficial Mahadasha.
Venus (20 years) — relationships, comfort, art, sensuality, marriage, beauty, refinement. The longest Mahadasha — a substantial chunk of a life.
Saturn (19 years) — discipline, long-term work, slow ripening of effort, restrictions, structural change, hard-earned maturity. Often the most demanding Mahadasha.
Rahu (18 years) — sudden expansion, foreign matters, ambition, materialism, unconventional success, illusions, intense desire.
Ketu (7 years) — spiritual depth, separation, withdrawal, sudden cuts, mystical experience, dissolution of attachments.

Ninguno de estos resultados está predestinado. La Mahadasha es la influencia dominante en el tiempo; los factores de la carta (ubicación del planeta, aspectos, cartas varga) determinan CÓMO se experimenta esa influencia.

Cómo AstroPal usa tu secuencia dasha

Cada respuesta relacionada con el tiempo en AstroPal se calcula en referencia a tu Mahadasha y Antardasha actuales. El gráfico muestra a tu Mahadasha actual permanentemente en la parte superior de la línea temporal de dasha. La capa de etapa vital del chat tiene en cuenta tu dasha al correr cuando respondes sobre matrimonio, carrera, salud, hijos o cualquier asunto con límite temporal.

The dasha timeline on /chart — shows your full 120-year Vimshottari sequence (paid plans), highlights the current Mahadasha, and lets you drill down into Antardashas and Pratyantardashas with classical Sanskrit names alongside English.
The AI chat — receives the full dasha sequence in its context and uses canonical year durations (Ketu 7, Venus 20, etc.) hardcoded into the system prompt so it never invents periods.
The Compatibility module — checks Dasha Sandhi risk — the dangerous transitions where one major period hands off to the next, sometimes around the wedding date.
The Muhurtha module — evaluates proposed dates against your running dasha. A wedding scheduled during a benefic dasha thrives; one during a difficult dasha faces unnecessary headwinds.

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Preguntas frecuentes

¿Cómo sé qué Mahadasha estoy presentando ahora mismo?

Generate your free birth chart and the dasha card displays your current Mahadasha and Antardasha. The Sanskrit graha name and English label appear together. The start and end dates are computed to the day.

¿Algunos Mahadashas son siempre buenos y otros siempre malos?

No. The reputation of “Jupiter Mahadasha is always best” or “Saturn Mahadasha is always hardest” is a popular oversimplification. The classical authorities are explicit that a planet's effect during its Mahadasha depends on (a) its natural significations, (b) its dignity in your chart (own sign, exalted, debilitated), (c) the houses it owns for your specific Lagna, (d) its aspects and conjunctions. A weak Jupiter can produce a difficult Jupiter Mahadasha; a strong Saturn produces a constructive Saturn Mahadasha.

¿Cuál es la relación de Sade Sati con dasha?

Sade Sati is Saturn's TRANSIT — the slow-moving real-time motion of Saturn through the signs around your Moon. The dasha is the natal timing scaffold. The two interact: Sade Sati during a Saturn-friendly Mahadasha is much milder than Sade Sati during a Mars or Sun Mahadasha. Both must be read together for accurate timing.

¿Por qué el ciclo es de 120 años y no 100 o 144?

La respuesta clásica (según el Sage Parashara registrado en BPHS) es que 120 años es la esperanza de vida humana natural máxima, y las proporciones de los años codifican los pesos cósmicos relativos de los nueve grahas. Los números en sí se presentan como tradición recibida; los textos no los derivan de principios fundamentales. Han demostrado ser empíricamente consistentes a lo largo de siglos de observación — que es el estándar clásico.

Profundizando

For the most important divisional chart that refines dasha interpretation, see Navamsa explained. For Saturn's transit during your Saturn-period (or any period), see Sade Sati explained. For the foundational Vedic chart, see Kundli Explained.

Divulgación honesta

Vimshottari Dasha is a multi-millennia documentary timing system with rigorous internal mathematics. It has not been peer-reviewed-validated as predictive of life events. We present it as the classical texts present it — a structured framework for thinking through life-timing, with canonical year durations and consistent rules — not as fate. The chart computations (planetary positions, nakshatras, dasha start-dates) are precise astronomy; the interpretations of what each period means are symbolic.