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
1991-09-10 → 1991-09-11
Sun
1991-09-11 → 1991-09-11
Moon
1991-09-11 → 1991-09-11
Mars
1991-09-11 → 1991-09-11
Rahu
1991-09-11 → 1991-09-12
Jupiter
1991-09-12 → 1991-09-13
Saturn
1991-09-13 → 1991-09-14
Mercury
1991-09-14 → 1991-09-14
Ketu
1991-09-14 → 1991-09-15
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.