Chhath Puja 2027: Four Days Counted From Kārtika Śukla Chaturthī

If you have kept Chhath, or watched someone in your family keep it, you already know the thing that calendar websites keep missing. Chhath is not a single day with a single timing.

It is a four day sequence, and each of those days has its own rule about food, water, bathing and the direction you face. Yet almost every listing you find online prints one date, labels it “Chhath Puja”, and moves on.

That one date is real. It is the day of the Sandhyā Arghya, the evening offering to the setting Sun, and it falls on Kārtika Śukla Ṣaṣṭhī. It is also the most visible day, which is why it gets published. The other three days are where the vrat actually lives.

The four days, and what changes on each

The sequence begins on Kārtika Śukla Chaturthī and closes on Saptamī morning. Four days, four different states.

• Nahāy Khāy, on Chaturthī. The vratī bathes in a river or a water body, cooks a single simple meal, and eats once. Onion and garlic leave the kitchen entirely from this point.
• Kharnā, on Pañchamī. A full day fast without water, broken after sunset with kheer made from jaggery and rice, and roti. Once that meal ends, the long fast begins.
• Sandhyā Arghya, on Ṣaṣṭhī. The offering made standing in water to the setting Sun. This is the photograph everybody has seen.
• Uṣā Arghya, on Saptamī. The offering to the rising Sun at the very next sunrise, after which the fast is broken.

The fast that runs from the end of Kharnā to the Uṣā Arghya is nirjala, meaning without water, and it stretches roughly thirty six hours. That is the real weight of Chhath, and it sits mostly on days the calendars do not name.

The one 2027 date I am willing to print

Chhath 2027 falls on 4 November 2027, a Thursday, on Kārtika Śukla Ṣaṣṭhī. That is the Sandhyā Arghya day, computed from this site’s own festival engine and checked against the tithi independently.

I am deliberately not printing Gregorian dates for the Chaturthī, Pañchamī and Saptamī days here. The engine returned the Ṣaṣṭhī date, and on this site a date gets published only when the engine returned it, because a tithi does not always advance one calendar day at a time. .

What I can say without any computation is structural: the Uṣā Arghya is offered at the sunrise immediately following that evening offering.

Why one printed date causes real problems

Families travel for Chhath. People take leave for it. When a listing shows a single date, someone books a train for that date and arrives after Kharnā has already happened, which is the day the fast actually starts. The vratī has then been without water for a full day before the visible ceremony that the calendar named.

This is the practical cost of publishing a festival as a point instead of a span. Chhath is the clearest case, though the same problem shows up around the five days of Diwali, where Dhanteras, Narak Chaturdaśī, Lakṣmī Pūjā, Govardhan Pūjā and Bhai Dooj all get compressed into one word.

How Ṣaṣṭhī gets fixed to a calendar day

A tithi is the angular distance between the Sun and the Moon divided into thirty parts of twelve degrees each. It is not a day. It can run anywhere from about nineteen to about twenty six hours because the Moon’s speed varies through its orbit, so a tithi can begin at three in the afternoon and end at one the next afternoon.

That is why two panchāṅgas can print different dates for the same festival. The rule they apply is the vyāpti rule, which asks how much of a given tithi covers a specific reference moment. For Chhath the reference is the sunset of Ṣaṣṭhī, because the arghya is offered to the setting Sun.

A tithi that is present at sunset carries the vrat, even if it began late the previous day. If you want the underlying mechanics, I have written them out in the five limbs of the panchāṅga.

Two misreadings worth correcting

That Chhath is a Sun worship festival only

Search results almost always describe Chhath as worship of Sūrya. That is half of it. The vrat is addressed to Sūrya and to Ṣaṣṭhī Devī, called Chhaṭhī Maiyā in the songs, and the sixth lunar day is her day. The name Chhath is the tithi’s name, so the festival is named after her position in the fortnight rather than after the Sun.

This matters for how the vrat reads. Ṣaṣṭhī Devī is invoked in connection with children and their protection, which is why so many Chhath vows are made about a child. Reading Chhath as a Sun festival alone loses the reason the vrat is usually taken in the first place.

That the evening offering is the climax

The Sandhyā Arghya to the setting Sun gets the attention because it photographs well. Classically, the offering to the setting Sun and the offering to the rising Sun are a pair, and the second one closes the vow. A Chhath where the Uṣā Arghya is missed is an incomplete Chhath, however dramatic the previous evening looked.

There is a quieter idea inside that pairing. Very few observances in the Indian calendar ask you to salute a declining Sun before you salute a rising one. The order is deliberate.

The rarely said part: Chhath runs without a priest

Chhath has no purohita requirement, no mantra that must be recited by a specialist, and no temple. The vratī performs it directly. There is no intermediary, and no fee. In a religious landscape where almost every observance has a professional attached to it, this one has stayed structurally free.

I mention it because it says something about how this vrat resists being sold. There is nothing to buy. The offerings are seasonal produce, sugarcane, thekua made at home, and a bamboo soop. That is the entire kit.

Where Chhath sits in the Kārtika sequence

Chhath closes a dense stretch of Kārtika. From this site’s verified 2027 list, Dhanteras falls on 27 October, Narak Chaturdaśī on 28 October, Diwali and Lakṣmī Pūjā on 29 October, Govardhan Pūjā on 30 October and Bhai Dooj on 31 October 2027. Chhath then follows on 4 November 2027. Before all of it, Vijayadaśamī falls on 10 October 2027.

Seeing them in one line makes the shape obvious. Āśvina closes with the Devī cycle, Kārtika opens with the Lakṣmī cycle, and Chhath sits just after, moving the attention from the household lamp to the Sun standing over open water.

What a chart can and cannot tell you about a vrat

People sometimes ask whether their chart says they should keep Chhath. A birth chart is a map of conditions and timing. It does not issue instructions, and I do not read it as though it does.

What a chart can honestly show is context: which daśā is running, what the Sun is doing by house and sign, and whether a period is asking for discipline or for rest.

A nirjala fast of thirty six hours is a physical undertaking. That decision belongs with the person and, where health is a factor, with a doctor. No placement in any chart changes that, and nobody should tell you a vrat is compulsory because of a planet.