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
Rahu
1991-02-10 → 1991-02-11
Jupiter
1991-02-11 → 1991-02-13
Saturn
1991-02-13 → 1991-02-15
Mercury
1991-02-15 → 1991-02-17
Ketu
1991-02-17 → 1991-02-17
Venus
1991-02-17 → 1991-02-19
Sun
1991-02-19 → 1991-02-20
Moon
1991-02-20 → 1991-02-21
Mars
1991-02-21 → 1991-02-22
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.