Diwali 2026: 8 or 9 November? Why Lakshmi Puja Falls on 8 November

2026-08-26

Two dates are circulating for Diwali 2026. Amavasya begins 8 November at 11:28:29 and ends 9 November at 12:32:14, so the pradosh kaal after sunset falls inside the tithi on the 8th and misses it entirely on the 9th. Why the 8th wins, and why some calendars still print the 9th.

Two dates are circulating for Diwali 2026 — Sunday 8 November and Monday 9 November. Neither is a typo; both come out of real panchang arithmetic. Only one survives the rule that actually governs Lakshmi Puja, and once you see the timestamps the disagreement stops being mysterious.

The short answer

Diwali 2026 falls on Sunday, 8 November. Lakshmi Puja is done that evening, in the pradosh kaal that opens at sunset — 17:30 in Delhi.

The reason fits in one sentence: Kartika Amavasya covers the whole of 8 November's pradosh kaal, and has already ended hours before 9 November's pradosh kaal begins. Everything below is that sentence, slowed down.

The two timestamps everything turns on

Amavasya is not a day. It is a window between two instants, and in 2026 that window straddles a midnight — which is exactly why the confusion exists.

Measured for Delhi. Nakshatra is Swati on both days; yoga is Ayushman on the 8th, Saubhagya on the 9th. Sunrise is 06:39 both mornings; sunset is 17:30 on the 8th and 17:29 on the 9th.

What pradosh kaal actually is

Pradosh kaal is the stretch of early evening beginning at sunset and running roughly four ghatis — about two hours twenty-four minutes. That is the window in which Lakshmi Puja is prescribed. Not the morning, not midnight. So for each candidate date you compute the band from that day's sunset and ask one yes-or-no question: is Amavasya running during it?

Sunset and tithi timestamps are read from our panchang engine for Delhi. The pradosh windows are derived — sunset plus four ghatis — not separately measured.

The arithmetic, spelled out

On 8 November, Amavasya begins at 11:28:29. Sunset is at 17:30. By the time the puja window opens, Amavasya has already been running 6 hours 1 minute 31 seconds, and it keeps running until 12:32 the next afternoon. The entire 17:30–19:54 band sits inside the tithi with enormous margin on both sides.

On 9 November, Amavasya ends at 12:32:14. Sunset is at 17:29 — 4 hours 56 minutes 46 seconds later. By then the tithi is Pratipada. There is no overlap at all: not partial, not marginal. Zero. That is the whole case.

Why some calendars will still print 9 November

Because they are answering a different question, and answering it correctly. Most Hindu observances default to the udaya tithi rule: the day belongs to whichever tithi is running at sunrise. Check the sunrises. At 06:39 on 8 November the tithi is still Chaturdashi — Amavasya has not started. At 06:39 on 9 November, Amavasya is running. By udaya tithi, Amavasya's day is unambiguously 9 November.

A second common tie-breaker gives the festival to whichever calendar day contains more of the tithi. Run it and the result is almost comic: Amavasya occupies 12 hours 31 minutes 31 seconds of 8 November and 12 hours 32 minutes 14 seconds of 9 November. The 9th wins by forty-three seconds.

So two respectable rules both point at 9 November. A panchang printing the 9th is not careless — it is applying the general default instead of the specific one.

Why the pradosh rule outranks both

The principle in Hindu timekeeping is that a specific instruction beats a general one. Udaya tithi is the fallback for rites with no time of day attached. Lakshmi Puja has one — pradosh kaal. Once a rite names its own hour, you stop asking which day owns the tithi and start asking whether the tithi is present at that hour.

Worth saying plainly: the texts prescribe pradosh kaal for this puja but never explain why the evening rather than any other part of the day. No reasoning is offered in the sources, and we will not manufacture one. The instruction is old, consistent, and followed.

The same principle, three different anchors

Pradosh is not a Diwali quirk. Several festivals name an hour, and each names a different one.

Ganesh Chaturthi is the cleanest parallel. Shukla Chaturthi runs 07:08:37 on 14 September to 07:45:45 on the 15th. Madhyahna on the 14th works out to roughly 11:02–13:30, squarely inside the tithi; on the 15th Chaturthi is finished by 07:46, long before midday. (Those madhyahna times are derived from the engine's sunrise 06:06 and sunset 18:26, not separately measured.)

Karva Chauth shows how tight an anchor can get. Krishna Chaturthi ends at 22:10:52 on 29 October; Delhi moonrise that night is 20:11. The fast breaks inside the tithi with under two hours to spare.

Dhanteras makes the identical move two days before Diwali. Trayodashi runs 6 November 10:31:27 to 7 November 10:48:39. Pradosh on the 6th is 17:31–19:55, well inside it; on the 7th Trayodashi ends at 10:48, hours before sunset. Dhanteras is the 6th, not the 7th — for exactly the reason Diwali is the 8th, not the 9th.

Why the five days look stretched out this year

Here is what makes people second-guess the 8th: the 2026 sequence has gaps in it.

Two oddities fall out of this. Choti Diwali and Diwali share one day — Chaturdashi runs at dawn on 8 November for the abhyanga snan, and Amavasya has taken over by evening for the puja. And 9 November is empty: Pratipada begins only at 12:32 that afternoon, too late for Govardhan Puja's morning rite, which moves to the 10th. A calendar-maker who wants the five days tidy is tempted to shift Diwali to the 9th and close the gap. The tithis do not permit it.

If you are not in Delhi

Every clock time here is Delhi IST. Tithi start and end instants are the same across India — a tithi is a position of the Moon relative to the Sun, not a local event. Sunrise, sunset and moonrise are not: sunset on 8 November comes several minutes earlier in Kolkata and later in Mumbai or Ahmedabad, shifting your pradosh window with it.

That does not change the date — these margins are hours wide, and no Indian city has a sunset late enough on 9 November to reach back to 12:32. It does change your puja window by a few minutes, so pull your own city's sunset from the daily panchang before fixing a time.

What to do on the evening of 8 November

Clean and light the house before sunset. Begin after 17:30; the outer boundary is 19:54. Many panchangs narrow this to the portion overlapping Vrishabha lagna, a fixed sign — for that refinement take the lagna window from your local panchang, as our engine reports tithi and sunset rather than lagna spans.

For the puja sequence itself, our fuller Diwali 2026 vidhi and muhurat guide covers the samagri and the order of offerings, and the tithi calendar carries the running timestamps if you want to check this arithmetic yourself.

The date is 8 November. The reason is that Amavasya is present when the lamp is lit.