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
Sun
1999-12-28 → 2000-01-03
Moon
2000-01-03 → 2000-01-14
Mars
2000-01-14 → 2000-01-22
Rahu
2000-01-22 → 2000-02-10
Jupiter
2000-02-10 → 2000-02-27
Saturn
2000-02-27 → 2000-03-18
Mercury
2000-03-18 → 2000-04-05
Ketu
2000-04-05 → 2000-04-13
Venus
2000-04-13 → 2000-05-04
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.