Udaya

Dasha explorer Eight dasha systems, every level each one is read to, for any date: what runs, which periods are at a junction, what changes between two dates, and the whole tree to open by hand.

Dasha system

Vimshottari 120 years, by the Moon's star

The dasha every jathagam is read by: 120 years from the Moon's nakshatra, and the one every other system is checked against.

When astrologers use each system
Vimshottari
The dasha every jathagam is read by: 120 years from the Moon's nakshatra, and the one every other system is checked against.
Ashtottari
Read as a second opinion on Vimshottari's timing, classically only when Rahu stands in a kendra or trikona from the lagna lord.
Yogini
A short 36-year cycle of eight yoginis, used for near-term timing and for prashna, the chart of a question.
Chara
Jaimini's sign dasha from the lagna, read for events tied to a house — marriage, property, a change of work — beside Vimshottari.
Kalachakra
Parashara calls it the most respected of the dashas; it is read from the Moon's pada for longevity and for the body and life signs (deha and jeeva), and its sudden jumps across the wheel are watched for sudden turns in health and fortune.
Narayana
The Jaimini dasha most read today for the events of the outer life — career, moves, marriage — timed sign by sign from the stronger of the lagna and the 7th.
Sthira
The "fixed" dasha of 96 years from the Brahma graha, read in Jaimini for longevity and for the timing of death and serious illness rather than for daily events.
Mandook
The "frog" dasha that leaps three signs at a time, read in Jaimini beside Narayana to time the rise and fall of fortune.

Enter the date of birth. Enter the birth details on the jathagam page, or save a person there to pick them here.

Positions are accurate to a few arc-minutes, enough for signs, stars and padas except within about half a degree of a boundary, which the pages point out. Nothing you enter leaves the browser.

How the calculations work