Ekādaśī Dates with the Nirṇaya — the Why, Cited

Every Ekādaśī of the year with the decision shown: which tithi prevailed at sunrise, viddha at aruṇodaya, when smārta and vaiṣṇava split and why — each predicate cited to the Dharmasindhu and Nirṇayasindhu, computed for your city. Free.

Why do Ekadashi dates differ between calendars?

Because the nirnaya (decision) depends on which tithi prevails at sunrise and whether the fast is pierced (viddha) at arunodaya — rules from the Dharmasindhu and Nirnayasindhu. Smarta and Vaishnava traditions can split onto different days; VedicSpace shows the full decision chain for every Ekadashi.

VedicSpace — the living Vedic observatory at vedicspace.com. Pañcāṅga, kuṇḍalī, daśā and muhūrta, computed with Swiss-Ephemeris (Lahiri) precision and cited to the classical canon. Where the text is silent, we stay silent.