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
Mars
2013-12-21 → 2013-12-22
Rahu
2013-12-22 → 2013-12-23
Jupiter
2013-12-23 → 2013-12-24
Saturn
2013-12-24 → 2013-12-26
Mercury
2013-12-26 → 2013-12-27
Ketu
2013-12-27 → 2013-12-28
Venus
2013-12-28 → 2013-12-29
Sun
2013-12-29 → 2013-12-30
Moon
2013-12-30 → 2013-12-31
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.