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 → Rahu
Venus
2013-04-27 → 2013-04-29
Sun
2013-04-29 → 2013-04-30
Moon
2013-04-30 → 2013-05-01
Mars
2013-05-01 → 2013-05-02
Rahu
2013-05-02 → 2013-05-04
Jupiter
2013-05-04 → 2013-05-06
Saturn
2013-05-06 → 2013-05-09
Mercury
2013-05-09 → 2013-05-11
Ketu
2013-05-11 → 2013-05-12
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.