West Bengal, Tripura
Bengali Calendar (Bangla San)
Planned — not yet computedA solar calendar, not a lunisolar one — its month boundaries cannot be derived from the existing tithi/masa engine and need their own sankranti-keyed conversion module.
- Mechanism
- Sidereal solar, with months keyed to the Sun's sankranti (sign-entry) rather than the Moon's tithi.
- New Year
- Pohela Boishakh
Where this stands
Not yet computed. Every date on this site comes from a real calendrical engine rather than a guess, and the sankranti-keyed solar-month engine this calendar needs hasn't been built yet.