Jyothshi · Vimshottari

Antardasha dates

Every mahadasha divides into nine antardashas — sub-periods, one for each planet, in a fixed order and fixed proportions. If you know which mahadasha you are in and roughly when it began, the nine dates follow. No birth time is needed, because the birth moment is only used to decide which mahadasha is running, not how it divides.

The nine Vimshottari lords, and their terms

Each antardasha takes the same share of the mahadasha as its own lord's term takes of the 120-year Vimshottari cycle, running in this fixed order from the mahadasha's own lord.

  • 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

What this page gives you

  • All nine sub-periods with dates, in sequence, starting from your mahadasha's own lord.
  • Which one is running now, and the date it turns — with the lord that follows it.
  • How accurate those dates are. A start you remember only to the month carries about a fortnight of uncertainty into every boundary, and the page says so rather than printing a day it cannot support.

Why other calculators ask for your birth time and this one does not

Deciding which mahadasha you are in requires the Moon's exact position at birth, which requires an exact birth time. Dividing that mahadasha into its nine antardashas requires neither — only the lord and the start. So if someone has already told you your mahadasha, the sub-periods are available to you today. Adding your birth details later replaces the estimate with exact dates.

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