CalcaTools

Sankashti Chaturthi Calculator | Find Sankashti Dates for Fasting

SPONSORED
A Sankashti Chaturthi Calculator helps calculate sankashti chaturthi calculator using Vedic astrology, panchang, calendar, muhurat, Vastu or naming inputs. It gives an instant browser-based result with a transparent method and source notes. Use it for planning and learning, then verify important ritual or marriage decisions with a qualified practitioner.

Last updated: June 2026 · Free · No sign-up required

SPONSORED
Results

Enter values above and click Calculate to see your result instantly.

Quick reference

2026 sampleWeekdayNote
7 JanWednesdaySakat Chauth (Magha) — biggest of the year in the north
5 FebThursday
7 MarSaturday
6 AprMonday
5 MayTuesdayAngarki Sankashti — Tuesday, extra merit
4 JunThursday
4 JulSaturday

verified AEO-ready answer first

The calculator returns a direct, extractable answer plus a structured breakdown for AI Overviews, ChatGPT citations and Perplexity-style answer extraction.

privacy_tip Private browser calculation

Inputs are processed client-side in your browser. CalcaTools does not require login and does not store birth details.

menu_book Topical context included

This page is mapped to the TIER 6 — Hindu Festival & Vrat Date Calculators cluster with related Hindu calendar, Jyotish, muhurat and Vastu entities for semantic SEO.

info Use responsibly

For ceremonies, marriage matching and legal decisions, verify with a qualified practitioner and your regional panchang.

Interpretation guide

ElementDetail
TithiChaturthi of the Krishna (waning) paksha, every lunar month
Fast windowSunrise to moonrise — broken only after seeing/offering to the moon
AngarkiA Sankashti falling on Tuesday; held equal to a year of Sankashtis
DeityGanesha as Sankata-hara, remover of obstacles
Vinayaka ChaturthiThe Shukla-paksha counterpart, a separate daytime fast

lightbulb Worked example

Let's say you are using the Sankashti Chaturthi Calculator. A Sankashti Chaturthi Calculator helps calculate sankashti chaturthi calculator using Vedic astrology, panchang, calendar, muhurat, Vastu or naming inputs. It gives an instant browser-based result Enter the values that match your situation into the input fields and press calculate — using realistic numbers makes the result directly useful for you.

Result: The calculator instantly applies the formula Sankashti day = civil day whose sunrise carries the Krishna Chaturthi (19th tithi) and returns the result with appropriate precision.

What this means: Read the result in the context of what you are measuring. The step-by-step breakdown lets you confirm the math and understand which input most affects the outcome.

Formula & methodology

Formula: Sankashti day = civil day whose sunrise carries the Krishna Chaturthi (19th tithi)

The Sankashti Chaturthi Calculator is built on a well-established calculation method. It uses the formula Sankashti day = civil day whose sunrise carries the Krishna Chaturthi (19th tithi) to turn your inputs into a reliable result. A Sankashti Chaturthi Calculator helps calculate sankashti chaturthi calculator using Vedic astrology, panchang, calendar, muhurat, Vastu or naming inputs. It gives an instant browser-based result with a transparent The steps are shown on the page so you can follow the reasoning from input to output.

  1. Enter the year.
  2. The calculator lists every day whose sunrise tithi is the 4th of the waning fortnight — one per lunar month, 12–14 in a year.
  3. Weekdays are attached; any Tuesday entry is an Angarki Sankashti.
  4. The fast runs until local moonrise that night (moonrise on Krishna Chaturthi is typically 2–3 hours after sunset).

Worked example — 2026 opens with Sakat Chauth on Wednesday, 7 January 2026 and includes an Angarki Sankashti on Tuesday, 5 May 2026; the year carries 13–14 observances, one per lunar month.

Authoritative source: Hindu astrology reference

Frequently asked questions

What is Sankashti Chaturthi?
The Ganesha fast kept on the Chaturthi (4th tithi) of every waning fortnight. “Sankashti” means deliverance from difficulties; devotees fast from sunrise and break the fast only after moonrise, offering arghya to the moon and durva to Ganesha.
Why is the fast broken at moonrise, not sunset?
The vrat’s defining ritual is the evening moon offering — Chaturthi’s moon is linked to Ganesha’s grace in the Puranic story. On Krishna Chaturthi the moon rises late (roughly 2–3 hours after sunset), so the panchang’s moonrise time for your city decides when you eat.
What is Angarki Sankashti?
A Sankashti that falls on a Tuesday (Angaraka = Mars). It is considered as meritorious as a whole year of monthly Sankashtis, and Maharashtra’s Ganesha temples see their largest crowds on it. In 2026, 5 May is an Angarki.
How is Sankashti different from Vinayaka Chaturthi?
Both are monthly Chaturthi fasts for Ganesha: Sankashti is on the waning-fortnight Chaturthi with a moonrise-bound fast, Vinayaka is on the waxing-fortnight Chaturthi with a midday puja. The annual Ganesh Chaturthi festival is simply the Bhadrapada Vinayaka Chaturthi.
Which Sankashti is the most important?
The Magha-month one — Sakat Chauth (7 January in 2026) — is the most prominent, especially in North India, where mothers fast for their children's welfare and tilkut offerings are typical. In Maharashtra every Sankashti Chaturthi is observed with the Ganapati Atharvashirsha recitation, making the monthly observances equally important there.
Why does the date fall on a different day every month?
It follows the lunar cycle, not the solar month — Krishna Chaturthi is the fourth tithi of the waning fortnight, and a lunar month is about 29.5 days. So the observance drifts through the Gregorian calendar, landing on a different civil date each time.
Why does my city sometimes show a different date than my cousin's?
Because the rule keys off the tithi prevailing at local sunrise, and sunrise times differ by longitude. Two cities can legitimately observe Sankashti on different civil days — which is why the location input changes the answer.
Is there a more significant Sankashti Chaturthi each year?
The one that falls on a Tuesday (Angaraka). It is considered especially auspicious for Ganesha devotees, with many observing a stricter fast that day — so the calculator's Tuesday results are worth marking on the calendar.
How is this different from Vinayaka Chaturthi?
The paksha is the difference: Sankashti is the Chaturthi of the waning fortnight (Krishna paksha), observed with fasting and moonrise prayers; Vinayaka Chaturthi is the Chaturthi of the waxing fortnight (Shukla paksha), the monthly birthday observance of Ganesha.

Explore the full Hindu & Vedic toolkit

Every CalcaTools Hindu calculator — kundali and birth charts, planetary dashas, doshas and remedies, panchang and muhurat timings, festival dates, and vastu — computed with the same Lahiri-ayanamsa astronomy engine validated against published ephemerides.

Birth chart & kundali

Planets, dashas & transits

Doshas & remedies

Panchang & muhurat

Festivals & Hindu calendar

Vastu, names & lucky signs

More Hindu tools