How long does the Ganeshotsav festival last?

Traditionally up to 10 days, ending on Ananta Chaturdashi with the immersion (visarjan) of the Ganesha idol, though many households observe a shorter 1.5, 3, 5, or 7-day cycle.

Why does this calculation check the Sun's Rashi as well as the Tithi?

Shukla Chaturthi recurs every lunar month, so a Tithi-only search can match the wrong month in an Adhik Maas year — checking the Sun's Rashi (Simha/Leo, corresponding to Bhadrapada) pins down the correct occurrence.

Is Ganesh Chaturthi the same date as Janmashtami's month?

Both fall in Bhadrapada month (Purnimanta reckoning), a few days apart — Janmashtami on Krishna Ashtami, Ganesh Chaturthi on Shukla Chaturthi of the same lunar month cycle.

How accurate is this calculation?

Verified against a real, independently-published 2026 date for this exact Tithi/Rashi combination.

The ritual immersion of the Ganesha idol in a river, lake, or the sea, marking the end of the festival and Ganesha's symbolic return to Mount Kailash.

Does this calculator work for past or future years?

Yes — enter any Gregorian year to find that year's calculated date.

Why might my local celebration's date differ by a day from this calculator?

This tool uses a fixed midday reference instant rather than the exact Tithi transition moment, which real Panchangs use — a date very close to that boundary can occasionally differ by a day.

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Ganesh Chaturthi Date Calculator

The calculated date of Ganesh Chaturthi for any Gregorian year.

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Last reviewed 2026-09-07

About the Ganesh Chaturthi Date Calculator

Calculates the date of Ganesh Chaturthi, the start of the Ganeshotsav festival, for any Gregorian year.

100% Free Runs in Your Browser No Sign-Up Required

How to use it

Enter a Gregorian year.
Read the calculated date of Ganesh Chaturthi.
Check the 10-day Ganeshotsav table below for the immersion (visarjan) day.

Formula

Ganesh Chaturthi falls on Bhadrapada Shukla Chaturthi (4th Tithi of Shukla Paksha) — found by searching for the date whose Tithi is Shukla Chaturthi AND whose Sun sidereal Rashi is Simha (Leo), the second condition needed to correctly disambiguate the right month's occurrence in an Adhik Maas (leap month) year.

Worked example

Ganesh Chaturthi 2026 is calculated as 14 September (Monday).

Ganeshotsav's 10 days

Ganeshotsav's 10 days
Day	Milestone
Day 1	Ganesh Chaturthi — idol installation (pran pratishtha)
Days 3, 5, 7	Common shorter-observance immersion days for household idols
Day 10	Ananta Chaturdashi — main public immersion (visarjan)

Interpreting your result

This is a calculated approximation using a fixed India Standard Time midday reference; the real observed date can occasionally differ by a day from a local Panchang's sunrise-based determination.

Recommendations

• Most households observe a shorter 1.5, 3, 5, or 7-day cycle before immersion; the full 10-day-to-Ananta-Chaturdashi cycle is more common for larger public (sarvajanik) installations.

Frequently asked questions

It's fixed to a lunar Tithi (Bhadrapada Shukla Chaturthi), not a Gregorian date — the date drifts year to year with the lunar calendar, and can shift by nearly a month in a year with an Adhik Maas.