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Almanac · The gist

The fortnight for the dead

Pitru paksha, the fortnight Hindu families keep for their ancestors, runs from 26 September to 10 October in 2026, and unlike every other stretch of the Indian calendar it is organised by people rather than by events: each of its days belongs to whoever died on that particular lunar day.

This is the short way in. The essay has the working, the sources and the sky.

Every other page of an Indian almanac answers "what day is it". These 15 dates answer "whose day is it". And the day is not decided at sunrise like almost everything else on the calendar. It is decided by which lunar day is running in the fourth fifth of the afternoon.

Indian calendars count in lunar days, called tithis. A tithi is a stage in the widening gap between the moon and the sun, not a block of clock time, so it runs a little longer or shorter than one of our days and drifts across our dates.

Once a year there is a fortnight set aside for remembering the family dead. It starts on the full moon at the end of the month of Bhadrapada and ends on the following no-moon day. In 2026 that is 26 September to 10 October.

Here is what makes it unusual. A family does not remember its dead on a date everyone shares. It remembers them on the tithi the person died on. If your grandfather died on the sixth lunar day, his day in this fortnight is the sixth lunar day. So the fortnight works like a register: each household reads one line of it.

Finding that line takes one extra step. Almost everything on an Indian calendar is dated by sunrise: whichever tithi is running when the sun comes up names the whole day. This fortnight does not use that test. It uses the afternoon. Split the daylight into five equal parts and take the fourth. The rite belongs in that window, so the date chosen is the one whose window the tithi runs through.

The two rules can pick different days. In Delhi on Thursday 1 October 2026 that window runs 13:22 to 15:45, and the sixth tithi runs from 12:35 on Thursday to 10:15 on Friday morning. Sunrise would have named Friday. The afternoon names Thursday.

There are 16 tithis to fit into 15 dates, so one date carries two. In 2026 it is Wednesday 30 September.

A few days have standing assignments: one tied to the star-segment Bharani, a ninth day kept for the women of the family, a fourteenth set aside for those who died violently, and the last day, kept for everyone whose date nobody remembers.

Words decoded

tithi (तिथि)
a lunar day, measured by the widening gap between moon and sun rather than by the clock
pitru paksha (पितृ पक्ष)
literally the ancestors' fortnight; the 15 or 16 lunar days set aside each year for remembering the family dead
shraddha (श्राद्ध)
the rite of remembrance a household performs for its own dead
purnima (पूर्णिमा)
the full moon day, which opens this fortnight
amavasya (अमावस्या)
the no-moon day, which closes it
aparahna (अपराह्ण)
the fourth of the five equal parts of daylight, roughly mid-afternoon; the window that decides which date a shraddha falls on
Bhadrapada / Ashwina
two lunar month names; calendars that count months from new moon call this fortnight Bhadrapada's, calendars that count from full moon call the same days Ashwina's
nakshatra (नक्षत्र)
one of 27 segments of sky the moon passes through; Bharani is one of them
Sarva Pitru Amavasya
the closing no-moon day, kept for all ancestors together, including those whose tithi is unknown or was missed
Why anyone should careFamilies plan this fortnight weeks ahead, and the one thing they need is a date. Getting it from the ordinary tithi column can put you a full day out, because this observance is timed by the afternoon and not by sunrise. Knowing that turns a source of quiet anxiety into a two-minute lookup. And the last day of the fortnight is a piece of calendar design worth noticing on its own: it exists because whoever built the system knew that records get lost and memories fail, and made room for that instead of penalising it.
Read it properly, 6 min The fortnight for the dead