The Vimśottarī tree to five levels. Every boundary is an exact division of its parent — the last child ends precisely where the parent does — and the year length is named because it changes the answer. Nothing entered here is stored on our servers — your browser alone remembers your last-used details.
Year length: 365.25636 days (meanSiderealDrik) · running now: Jupiter → Ketu → Saturn → Moon
Mercury
1989-10-03 → 1989-12-16
Ketu
1989-12-16 → 1990-01-15
Venus
1990-01-15 → 1990-04-11
Sun
1990-04-11 → 1990-05-07
Moon
1990-05-07 → 1990-06-19
Mars
1990-06-19 → 1990-07-19
Rahu
1990-07-19 → 1990-10-05
Jupiter
1990-10-05 → 1990-12-13
Saturn
1990-12-13 → 1991-03-05
Boundary times are root-found and residual-verified, never interpolated. Change the convention and these numbers change — which is why it is printed beside them.