Date Differences
Smarta and Vaishnava Ekadashi
Smarta and Vaishnava calendars can choose different fasting dates when tithi and sunrise conditions require separate observance rules.
Location-aware calculation
Calculated for New Delhi, Delhi, India (Asia/Kolkata)
Next Ekadashi tradition details
Apara Ekadashi
Calculated for New Delhi, Delhi, India (Asia/Kolkata)
Parana means breaking the Ekadashi fast. It is usually done after sunrise on Dwadashi, avoiding Hari Vasara.
Why two calendars may disagree
Ekadashi is a vrat date, not just an astronomical tithi label. A calendar has to decide which civil day should be used for fasting after checking the tithi at local sunrise, whether Ekadashi is contaminated by Dashami, whether Dwadashi remains available for Parana, and the tradition's rule set.
Local sunrise
The same tithi can fall differently around sunrise in different cities.
Dwadashi availability
Parana needs a valid Dwadashi window, which can shift the recommended fast.
Tradition rules
Smarta-first public display can still show Vaishnava/ISKCON alternates where the API returns them.
Sources and tradition
How to read this Ekadashi guide
Traditional Ekadashi observances are described in Vaishnava texts and regional vrat traditions. Practices vary across sampradaya, family lineage, and local temple guidance. This article presents a general Hindu household observance, with Vaishnava notes where applicable.
Padma Purana, Uttara-khanda Ekadashi Mahatmya
Ekadashi Mahatmya chapters used in type-specific citation notes
Used for named Ekadashi kathas, devotional benefits, and observance context where a type page supplies chapter or verse detail.
Vaishnava and regional vrat traditions
Household, temple, and sampradaya practice
Used for practice framing such as family sampradaya, local temple guidance, and Smarta/Vaishnava distinctions.
HinduLab calculation methodology
Location-aware panchang, tithi, sunrise, and vrat timing rules
Explains how HinduLab combines astronomical calculations, Hindu calendar rules, city, timezone, sunrise, and sunset data.
HinduLab Hindu calendar and vrats source library
Editorial review, regional variation, and health disclaimer policies
Documents the trust policy used for panchang tools, vrat guides, Ekadashi rules, and health cautions.