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
2020-12-10 → 2020-12-13
Sun
2020-12-13 → 2020-12-14
Moon
2020-12-14 → 2020-12-16
Mars
2020-12-16 → 2020-12-17
Rahu
2020-12-17 → 2020-12-20
Jupiter
2020-12-20 → 2020-12-22
Saturn
2020-12-22 → 2020-12-26
Mercury
2020-12-26 → 2020-12-28
Ketu
2020-12-28 → 2020-12-29
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.