Calculate 120-Year Planetary Periods in <300ms

Vimshottari means '120' in Sanskrit - it's a 120-year cycle where each planet rules for a specific number of years.

The sequence is always the same: 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.

Your birth nakshatra (where Moon was when you were born) determines which planet's period you start in.

For example, if you're born in Rohini nakshatra, you start with Moon Mahadasha.

Within each Mahadasha, there are 9 Antardashas (sub-periods) following the same planetary sequence.

Then within each Antardasha, there are 9 Pratyantardashas (sub-sub-periods) - that's the complete 3-level system.

Our API calculates all this in just <300ms by pinpointing your exact Moon position, finding the nakshatra and pada (quarter), calculating how much of the starting Mahadasha is already completed, then generating the complete 3-level timeline.

Manual calculation requires ephemeris tables, calculator, and 30+ minutes.

We return it instantly in clean JSON.

Mahadasha is like the CEO of your life for X years - that planet's energy dominates everything.

Venus Mahadasha (20 years) brings focus on love, beauty, creativity, luxury.

Saturn Mahadasha (19 years) emphasizes hard work, discipline, responsibility, delays.

Rahu Mahadasha (18 years) creates sudden changes, foreign influences, obsessions.

Indian astrologers literally ask 'Which Mahadasha are you running?' before giving any prediction - it's that important.

For app developers, this means you can generate hyper-personalized daily horoscopes based on someone's current Dasha.

Example: 'You're in Jupiter-Venus period - excellent for marriage and career growth this month.' Way more accurate than generic sun sign horoscopes that 50 million people read.

Apps using Dasha-based predictions see 3x higher engagement because the advice actually matches what's happening in users' lives.

Our API gives you current Mahadasha with start/end dates, AI-generated interpretation, and predictions for career, relationships, health, finances.

Mahadasha tells you the big theme for years, but Antardasha tells you what's happening THIS year or next few months.

Within Venus Mahadasha (20 years), you'll go through Venus-Venus (3.3 years), Venus-Sun (1 year), Venus-Moon (1.7 years), Venus-Mars (1.2 years), etc.

Each Antardasha has different energy.

Venus-Mars is passionate but argumentative.

Venus-Jupiter is lucky and expansive.

Venus-Saturn brings delays in love.

For apps doing marriage timing or career predictions, Antardasha level is crucial.

Then Pratyantardasha drills down even more - useful for precise event timing like 'best 2-week window for wedding this year.' Our API returns all three levels (Maha + Antar + Pratyantar) with exact dates.

Professional astrologers use Pratyantardasha to predict events to the DAY.

Most free calculators only show Mahadasha.

Some show Antardasha.

Almost none show Pratyantardasha.

We give you all three levels instantly.

Essential for apps targeting serious astrology users or professional astrologers who need precision timing.

Your birth nakshatra (Moon's position in one of 27 lunar mansions) determines everything in Vimshottari Dasha.

First, it tells you which planet's Mahadasha you start in - there are 9 planets but 27 nakshatras, so 3 nakshatras per planet.

Ashwini/Magha/Mula start with Ketu.

Bharani/Purva Phalguni/Purva Ashadha start with Venus.

And so on.

Second, your exact position WITHIN that nakshatra determines how many years of that Mahadasha are already done.

If Moon is at the very start of Ashwini, you get full 7 years of Ketu Mahadasha.

If Moon is at the end of Ashwini, you might only get 1 year of Ketu before Venus starts.

This proportional calculation is where manual methods fail - requires precise Moon longitude, nakshatra spans, fractions.

Our API uses Swiss Ephemeris (NASA data) with 1 arc-minute accuracy, calculates Moon position exactly, determines nakshatra and pada, applies proportional formula, boom - complete 120-year timeline.

No margin for error like manual calculation.

Integration takes 2-3 hours max.

You send POST request with birth data (date, time, location) and settings like dasha_levels: ['maha', 'antar', 'pratyantar'].

Response includes birth nakshatra, current Mahadasha/Antardasha/Pratyantardasha with start/end dates, complete future timeline, and AI-generated predictions.

Example use case: dating app wants to show 'Best time for marriage' - query the API, find Venus-Jupiter or Jupiter-Venus periods in next 2 years, highlight those months.

Another use case: daily horoscope app - check user's current Dasha, generate personalized prediction like 'Mars Antardasha brings energy and motivation - great week to start new projects.' We provide SDKs for JavaScript, Python, PHP.

Authentication is simple Bearer token.

Response is clean JSON.

Way easier than learning Vedic astronomy, coding the Dasha algorithm yourself (3-6 months minimum), and maintaining accuracy.

Plus our API stays updated with latest astronomical data and interpretation improvements.

Vimshottari is THE most popular Dasha system (90%+ of Vedic astrologers use it), but there are others: Yogini Dasha (8-year cycle), Char Dasha (based on signs not planets), Jaimini Dasha, Ashtottari (108 years), Kala Chakra Dasha.

Each system has different math and reveals different things.

Professional astrologers cross-check multiple Dasha systems for accuracy.

Currently our API focuses on Vimshottari because it's what users expect.

Enterprise tier ($399+/mo) gets access to additional Dasha systems including Yogini and Char.

For 99% of apps targeting Indian market or Vedic users, Vimshottari alone is enough.

It's like GPS - there are GLONASS and Galileo satellite systems too, but GPS works for most use cases.

Start with Vimshottari, add other systems later if your power users demand it.

Our roadmap includes Yogini Dasha (Q2 2025) and Char Dasha (Q3 2025).

All accessible via same API with just system: 'yogini' parameter.