Amavasya

Traditional variation

Darsha Amavasya rites (tarpan/shraddha) are fixed by Aparahna; the udaya tithi is shown here. When Amavasya prevails at two sunrises, the second day is shown if Amavasya lasts at least three muhurtas into it. Somvati Amavasya is this day when it falls on a Monday. Some almanacs, including the Government of India's Rashtriya Panchang, also name Somvati Amavasya when Amavasya begins on the Monday, even after sunset: it prints Somvati Amavasya on Monday 13 July 2026, when Amavasya begins at 18:50 IST, while by this rule the Amavasya in India is Tuesday 14 July.

This is the date given by the rule shown above for the selected place. It is not the only valid date: regional Panchangs, family customs and sampradayas may observe it on a different day.

Rule source: Amavasya at sunrise. When Amavasya also prevails at least three muhurtas of the next day's daylight (Amavasya at two sunrises), the Pratipada-joined, later day by the tithi-yugma rule (Amavasya–Pratipada pair; Nirnaya Sindhu, Pariccheda 1, the yugma-vakya of Garuda Purana, Acharakanda 1.128.16-17). The weekday of this day is the one used for Somvati (Monday) Amavasya.

Traditions may vary by region and Panchang convention. Times are shown for the selected place, time zone and calculation profile.

Calculated with engine 1.4.2 · rules rules-2026-09-29-a0a4505e · profile north-lahiri-calibrated v1 · ayanamsa lahiri_drik_compat · astronomy-engine@2.1.19 · Asia/Kolkata