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
Mercury
1999-10-04 → 1999-10-12
Ketu
1999-10-12 → 1999-10-16
Venus
1999-10-16 → 1999-10-26
Sun
1999-10-26 → 1999-10-29
Moon
1999-10-29 → 1999-11-03
Mars
1999-11-03 → 1999-11-07
Rahu
1999-11-07 → 1999-11-16
Jupiter
1999-11-16 → 1999-11-24
Saturn
1999-11-24 → 1999-12-03
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.