Karwa Chauth 2026: Date, Moonrise Time and City Variations

Karwa Chauth 2026 falls on Thursday, 29 October — the Krishna Chaturthi that prevails at sunset in Delhi, four days after the full moon. The date is engine-verified; the moonrise time is not a number we will print, for a reason this post explains: it depends on your exact city, and publishing one national clock time for a moonrise fast is precisely how families end up waiting on the wrong minute.

The date, and how it is fixed

The rule is the standard prevailing-tithi rule: Karwa Chauth is the day the Krishna Chaturthi — the fourth tithi of the dark fortnight — prevails at sunset. For Delhi in 2026 that is Thursday, 29 October, and the engine’s computation with its basis is on the Karwa Chauth festival page. The day’s engine-verified shubh window, for the household puja preparations, is the Abhijit Muhurat, 11:43 AM – 12:27 PM IST in Delhi.

Because the rule keys on sunset, a panchang computed for a different city can occasionally attach the fast to the adjacent day; the mechanics are the same ones behind every festival divergence, covered in why panchang sites show different dates.

The day, hour by hour

The fast’s structure is fixed by tradition even where the clock times are local:

1. Sargi before sunrise. The pre-dawn meal from the mother-in-law’s household, eaten before first light — the fast begins with the day, not at a clock hour.
2. The nirjala stretch. No food or water through the day. The Karwa Chauth katha and the thali preparation belong to the afternoon.
3. The evening puja. Women gather for the karwa and the story, classically in the pradosh period around sunset; many families perform a home puja instead.
4. Moonrise and the arghya. The fast breaks only after the moon is seen and offered arghya — water offered to the moon through the sieve, then the first sip and morsel. This is the moment the whole day points at.

Why there is no single “moonrise time” for India

Moonrise is a local astronomical event in the strictest sense. The moon climbs above the horizon at a different clock time for every longitude and latitude — earlier in the east, later in the west, and shifted again by terrain and by how high the moon’s path carries it that night. Across India’s spread of longitudes the difference runs to many minutes, and abroad it runs to hours. A “Karwa Chauth moonrise time” printed for Delhi is simply wrong for Mumbai, and vice versa.

That is why our public festival data carries the date but not a moonrise column — moonrise modelling is exactly the kind of festival-specific computation we would rather ship correct than early, and we do not invent times. Here is how to get your real one:

• The Bela app computes moonrise for your precise location — not the nearest metro — and places the evening’s puja and arghya windows on it.
• Your city’s panchang page runs on a rolling window of engine data, rebuilt daily; as late October enters the window it carries the day’s local timings, computed the same deterministic way.

Two practical corollaries for 29 October:

• Check the time for where you will actually be that evening, not where you usually live — a fast broken on a work trip follows the travel city’s moon, not the home one.
• Agree on the source as a household. Families argue every year about whose app is right; pick one computation and keep it, so the arghya is offered together.

A note on the puja muhurat lists you will see elsewhere

Many sites publish a “Karwa Chauth puja muhurat” — an evening span derived from the local pradosh period. The classical anchor for the gathering is indeed the evening, but the fast’s critical moment is moonrise, not the span, and both move with your city. Treat any single all-India clock time for either as a Delhi approximation at best. The verified facts that travel are the ones above: Thursday, 29 October 2026, Chaturthi prevailing at sunset, sargi before dawn, arghya at your local moonrise.

The date with its engine basis is on the Karwa Chauth page and the festivals calendar. For the moonrise itself — the one number this post deliberately leaves local — the Bela app computes it for exactly where you will stand that evening.

Frequently asked questions

When is Karwa Chauth in 2026? Karwa Chauth 2026 falls on Thursday, 29 October — the day the Krishna Chaturthi tithi prevails at sunset in Delhi, computed by Bela’s engine.

What is the Karwa Chauth moonrise time in 2026? There is no single national moonrise time: the moon rises at a different clock time in every city, earlier in the east and later in the west, and by hours abroad. We deliberately do not print an invented all-India figure — the Bela app computes moonrise for your exact location, and the city panchang pages carry local timings as their rolling window reaches late October.

What is the shubh window on Karwa Chauth day? The engine-verified window for Delhi on 29 October is the Abhijit Muhurat, 11:43 AM – 12:27 PM IST — the universally auspicious midday window, useful for the day’s puja preparations. The fast itself is broken only at your local moonrise.

Does the Karwa Chauth date change by city? Rarely, by a day. The fast keys on the Chaturthi tithi prevailing at local sunset, so a longitude where sunset falls across the tithi boundary can observe on the adjacent day. The 2026 computation is clean for Delhi; the moonrise, unlike the date, varies by city every year.