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
Sun
1999-01-07 → 1999-01-08
Moon
1999-01-08 → 1999-01-10
Mars
1999-01-10 → 1999-01-11
Rahu
1999-01-11 → 1999-01-14
Jupiter
1999-01-14 → 1999-01-17
Saturn
1999-01-17 → 1999-01-20
Mercury
1999-01-20 → 1999-01-24
Ketu
1999-01-24 → 1999-01-25
Venus
1999-01-25 → 1999-01-28
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.