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
2018-12-04 → 2019-03-18
Saturn
2019-03-18 → 2019-07-19
Mercury
2019-07-19 → 2019-11-06
Ketu
2019-11-06 → 2019-12-22
Venus
2019-12-22 → 2020-04-30
Sun
2020-04-30 → 2020-06-08
Moon
2020-06-08 → 2020-08-12
Mars
2020-08-12 → 2020-09-26
Rahu
2020-09-26 → 2021-01-21
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.