Ganesh Chaturthi 2027: Saturday 4 September, and Why It Moved

Ganesh Chaturthi 2027: Saturday 4 September, and Why It Moved

Ganesh Chaturthi 2027 falls on Saturday, 4 September 2027, and visarjan on Anant Chaturdashi falls on Tuesday, 14 September 2027. That is ten days earlier than 2026, and the madhyahna puja window in Mumbai runs just 1 hour 3 minutes — 11:23 AM to 12:25 PM — against 2 hours 27 minutes this year.

The first-party numbers on this page are platform-wide across all 15 SubhSandesh page types, not Ganesh-specific: 49.6% of shared pages are opened on a phone (22,667 of 45,656 views) and 96.1% of started pages are actually published and shared (3,708 of 3,860), both measured 2026-09-08. Below are the dates to 2031 with visarjan attached, the arithmetic behind them, and a check you can run yourself.

Ganesh Chaturthi 2027 date, muhurat and visarjan

Drik Panchang's 2027 page for Mumbai puts the Chaturthi tithi from 02:18 PM on 3 September to 12:25 PM on 4 September. The festival day is the 4th.

That 12:25 PM ending is what makes 2027 awkward. The madhyahna window cannot outlast the tithi, so every Indian city's puja muhurat closes at the same instant that day — and the further west you are, the less of it you get.

Two moon-sighting windows are marked for avoidance: 02:18 PM to 08:34 PM on 3 September, and 09:49 AM to 09:16 PM on 4 September.

Why 2027 lands ten days earlier than 2026

Twelve lunar months do not add up to a solar year. Gislén and Eade's 2019 survey of lunisolar calendars in the Journal of Astronomical History and Heritage states it directly: a solar year is "about 11 days longer than a lunar year with 12 synodic months", which comes to roughly 354 days.

So a festival pinned to a lunar tithi walks backwards through the Gregorian year. NASA's century-long table of lunar phases puts the new moon that opens Bhadrapada at 03:27 UT on 11 September 2026 and the next one at 17:41 UT on 31 August 2027 — 354 days apart, almost exactly the figure above.

The festival itself shifted ten days, not eleven, and the missing day is the tithi rule doing its work. In 2026 the Chaturthi began at 07:06 AM on the 14th; in 2027 it begins at 02:18 PM on the 3rd and is still running at midday on the 4th, so the 4th claims it.

The extra month that resets the drift

Left alone, eleven days a year would drag Ganesh Chaturthi out of the monsoon and into winter inside two decades. The Hindu calendar prevents that by inserting a thirteenth month.

Gislén and Eade give the mechanism: because a synodic month is shorter than a solar month, "there will sometimes be two lunar months starting in the same solar month", and the first of that pair becomes intercalary — the adhika masa, carrying the same name with adhika in front of it.

Averaged out, this lands on the Metonic pattern: seven intercalary months in nineteen years, 235 lunations in total. The same paper does the arithmetic — nineteen tropical years is 6,939.6018 days, 235 synodic months is 6,939.6886 days, a mismatch of about two hours per cycle.

You can watch the resets happen in the next five years. The date drops ten days into 2027 and twelve more into 2028, then jumps forward nineteen days into 2029, back ten into 2030, and forward nineteen again into 2031. NASA's table agrees: the gaps between governing new moons run 354, 355, 384, 353 and 384 days, and each 384-day gap is a year with an extra month in it.

Ganesh Chaturthi for the next five years

Every date below was read off Drik Panchang's per-year page for Mumbai and cross-checked against NASA's new-moon instants.

The "ten-day festival" is only sometimes ten days: the gap to Anant Chaturdashi is set by two tithis moving independently, so it runs nine to eleven days.

2027 — Saturday, 4 September

Visarjan Tuesday 14 September. The shortest madhyahna muhurat of the six years here, at 1 hour 3 minutes in Mumbai, because the Chaturthi tithi expires at 12:25 PM. Ten days of Ganeshotsav, and the sthapana falls on a weekend.

2028 — Wednesday, 23 August

Visarjan Saturday 2 September. This is the earliest Ganesh Chaturthi of the decade — twelve days earlier than 2027 and the only one of the six in August. Muhurat 11:25 AM to 01:57 PM in Mumbai, a full 2 hours 32 minutes.

2029 — Tuesday, 11 September

Visarjan Friday 21 September. An intercalary month between August 2028 and September 2029 pushes the date nineteen days later instead of eleven days earlier. Muhurat 11:21 AM to 01:49 PM in Mumbai.

2030 — Sunday, 1 September

Visarjan Tuesday 10 September. The only Sunday sthapana in this stretch, with a nine-day Ganeshotsav — the shortest of the six. Muhurat 11:23 AM to 01:53 PM in Mumbai.

2031 — Saturday, 20 September

Visarjan Monday 29 September. The latest date of the six, again after an intercalary month, and late enough that visarjan runs into the last days of September. Muhurat 11:19 AM to 01:45 PM in Mumbai.

How to check any of these dates yourself

Start with the new moon. Ganesh Chaturthi is the fourth tithi of the waxing fortnight of Bhadrapada, so it lands three or four days after the amavasya that opens the month, and NASA publishes every new moon to 2100 to the minute.

For 2027 that instant is 31 August at 17:41 UT — 23:11 IST — and 4 September is four days later. Run the same test on 2028 (new moon 20 August, festival 23 August) and 2031 (new moon 16 September, festival 20 September) and it holds.

Then check the tithi window, because that is where almanacs disagree. A tithi is one-thirtieth of a synodic month — the time the Sun–Moon elongation takes to widen by 12° — so it averages about 23 hours 37 minutes and never lines up with a calendar day.

The lunation is not even a fixed length. A 2019 study in the Iraqi Journal of Physics modelled every synodic month from 2000 to 2100 and found a mean of 29.53109 days, a shortest of 29.27436 days beginning 16 January 2053 and a longest of 29.81442 days beginning 27 November 2008 — a spread of about thirteen hours. A date this far out has to be computed from real lunar positions, not extrapolated by subtracting eleven days from last year.

Planning a festival whose date will not sit still

Weekdays matter more than most people expect. Of the next five years, 2027 and 2031 are Saturdays and 2030 a Sunday, while 2028 falls on a Wednesday and 2029 on a Tuesday — which decides whether relatives travel.

The people who cannot travel are the reason to plan the message at the same time as the mandap. Across all 3,860 pages SubhSandesh has created since March 2026, spanning 15 page types, 49.6% of views arrive on a phone and 42.1% of creators password-protect the page before sharing it — platform-wide figures, not Ganesh ones.

Speed is not the constraint. The median gap between a page's first save and its last edit is 6.8 hours, sampled on 1,065 "I love you" pages — an evening's work, so the week before 4 September 2027 is early enough.

If you want the far-away cousin to do something rather than read something, the Ganesh Chaturthi page the recipient performs themselves has them offer the durva, kumkum, flowers and modak, circle the aarti thali while Karpur Gauram plays, and write their own prarthana back. For other occasions in the same year, browse every SubhSandesh template.

What a Ganesh Chaturthi page will not do for you

It cannot hand anyone a modak, and it cannot put them in front of your mandap. If the person you are thinking of will be in the same city on 4 September 2027, invite them and skip the link entirely.

It is also worth being blunt about how new this template is. Here is what people have actually built on SubhSandesh since March 2026 — all of it platform-wide, none of it Ganesh-specific:

Every number is measured 2026-09-08. The Ganesh template shipped days ago and nobody has used it yet, so there is no Ganesh-specific open rate to quote — only the platform-wide figures above, drawn from romantic and apology pages.

Watch the page get built

Ninety seconds, start to finish — the aarti going round, the five offerings, and the box at the end where they write a line back to you: Ganesh Chaturthi Wishes Online — Full Walkthrough. More page walkthroughs on Instagram: @subhsandesh_official.

Sources

• Drik Panchang, Ganesh Chaturthi 2027 date and puja time, Mumbai — no publication date given
• Drik Panchang, Ganesh Chaturthi 2031, Mumbai, and the same page for 2026, 2028, 2029, 2030 — undated
• Lars Gislén and J.C. Eade, "The Calendars of Southeast Asia. 1: Introduction", Journal of Astronomical History and Heritage 22(3), 407–416, 2019
• Abdul Rahman H.S., "Study the variation of synodic month for the moon through 2000-2100", Iraqi Journal of Physics 14(29), 138–144, published 3 February 2019
• Fred Espenak, NASA Goddard Space Flight Center, "Phases of the Moon: 2001 to 2100" — undated