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
Rahu
2000-12-03 → 2003-08-16
Jupiter
2003-08-16 → 2006-01-09
Saturn
2006-01-09 → 2008-11-15
Mercury
2008-11-15 → 2011-06-04
Ketu
2011-06-04 → 2012-06-22
Venus
2012-06-22 → 2015-06-22
Sun
2015-06-22 → 2016-05-16
Moon
2016-05-16 → 2017-11-15
Mars
2017-11-15 → 2018-12-04
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.