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
Ketu
2011-06-04 → 2011-06-27
Venus
2011-06-27 → 2011-08-29
Sun
2011-08-29 → 2011-09-18
Moon
2011-09-18 → 2011-10-20
Mars
2011-10-20 → 2011-11-11
Rahu
2011-11-11 → 2012-01-08
Jupiter
2012-01-08 → 2012-02-28
Saturn
2012-02-28 → 2012-04-28
Mercury
2012-04-28 → 2012-06-22
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.