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 → Rahu
Venus
1991-03-17 → 1991-03-23
Sun
1991-03-23 → 1991-03-25
Moon
1991-03-25 → 1991-03-28
Mars
1991-03-28 → 1991-03-30
Rahu
1991-03-30 → 1991-04-04
Jupiter
1991-04-04 → 1991-04-09
Saturn
1991-04-09 → 1991-04-15
Mercury
1991-04-15 → 1991-04-20
Ketu
1991-04-20 → 1991-04-22
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.