How are Vimśottarī antardaśā subperiods calculated?
Within a mahādaśā, subperiod durations are allocated proportionally according to the fixed nine-lord sequence and declared period lengths. The implementation must specify year length, nesting order, rounding, and boundary policy. Those dates form a deterministic chronology under the convention, not evidence that the lords cause events.
Direct answer
Within a mahādaśā, subperiod durations are allocated proportionally according to the fixed nine-lord sequence and declared period lengths. The implementation must specify year length, nesting order, rounding, and boundary policy. Those dates form a deterministic chronology under the convention, not evidence that the lords cause events.
Practical use
What to do with this answer
Compute all children from the parent duration and fixed order, preserve exact intermediate durations, and reconcile the children back to the parent without hidden rounding loss.
Distinctions to preserve
- Parent period duration versus calendar display
- Proportional allocation versus equal subdivision
- Chronology versus causal claim
Limitations
- Different year-length conventions can shift displayed boundaries.
- Interpretive rules require separate source and review evidence.
Authority graph
Which existing contracts carry the answer
These linked pages carry the underlying definition, method, or tradition record and its own sources. This page preserves their boundaries rather than becoming a new source of independent authority.
Vimśottarī mahādaśā sequence reference →
Establishes: A mahādaśā is a major interval in the fixed nine-lord Vimśottarī cycle. The conventional allocations total 120 nominal years before the sequence repeats.
Boundary: The mahādaśā sequence does not establish a causal timeline or demonstrate predictive skill merely because its dates are deterministic.
Vimśottarī antardaśā proportional timing reference →
Establishes: An antardaśā is a nested sub-period whose duration is the parent mahādaśā duration multiplied by the sub-lord’s nominal years divided by 120.
Boundary: A nested period pair does not establish a more precise forecast; additional labels can increase apparent specificity without adding empirical evidence.
Vimśottarī daśā: calculation, conventions, and limits →
Establishes: Vimśottarī daśā is a 120-year sequence used in Jyotiṣa. Maha Celestial calculates the chronology reproducibly; source-bound interpretation remains a separate layer.
Boundary: A daśā date is a calculated result under declared conventions. It does not establish that the period causes or predicts an event.
Equivalent questions
These query forms resolve to this same answer identity; they are not separate claims.
- How are antardasha dates calculated?
- What is inside a mahadasha?
- Why do dasha calculators show different dates?
- Do Vimshottari subperiods have equal lengths?
Non-claim
This answer is a method or tradition description. It is not a personalized reading and does not certify predictive validity, causation, medical outcomes, legal status, investment value, or guaranteed events.