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 → Jupiter
Mercury
1999-04-27 → 1999-04-28
Ketu
1999-04-28 → 1999-04-29
Venus
1999-04-29 → 1999-04-30
Sun
1999-04-30 → 1999-05-01
Moon
1999-05-01 → 1999-05-01
Mars
1999-05-01 → 1999-05-02
Rahu
1999-05-02 → 1999-05-03
Jupiter
1999-05-03 → 1999-05-05
Saturn
1999-05-05 → 1999-05-06
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.