Misri Calendar (Dawoodi Bohra) (米斯里曆)

THE MISRI CALENDAR — the Dawoodi Bohra community's Fatimid tabular Hijri, kept unbroken for a millennium with NO moon sighting, ever: fixed years in advance, which is why Bohra Ramadan and the Eids famously begin a day or two before the sighting communities'. A true SECOND tabular Islamic calendar beside the catalogue's civil one, differing in BOTH free parameters: the kabisa set {2,5,8,10,13,16,19,21,24,27,29} (the community's own 1431 worked example pinned at load) and the THURSDAY epoch, one day earlier. THE EPOCH WAS DERIVED, NOT ASSUMED — from the community's own published correspondence (12 Rabi al-Awwal 1439 = 30 November 2017), then CONFIRMED against an independent dated event (the Bohra Eid al-Fitr celebration of 30 March 2025), and bound to the civil Hijri engine by a divergence law asserted across a century: the Misri date runs 0–2 days ahead, never behind. Serves any date's Misri date with the community's month names (Muharram al-Haram … Zilhajjah al-Haram), the civil comparison, and the Bohra festival year — Ashara Mubaraka culminating on Ashura, Milad an-Nabi, the fixed Ramadan, Eid-e-Ghadir. Islamic becomes 7. Pure compute, no LLM.

Cost: 2 TIAN Points per call. tRPC procedure misri.date.