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Regarding the Solar Ingress Sankranti: the moment the sun moves from one zodiac sign to the next occurring at the end of the day, the five nadyas original: "pañcanāḍyaḥ"; a nadya or ghatika is 24 minutes, so 5 nadyas equal 2 hours on the previous day are considered auspicious original: "puṇyāḥ". This is stated specifically to emphasize the supreme merit of that time, and thus any perceived contradiction in the rules is resolved.
Regarding the first day of the bright fortnight of the month of Chaitra Chaitra is the first month of the Hindu lunar calendar, typically falling in March–April: that day which prevails at sunrise should be chosen. If the lunar day Tithi: a lunar day in the Hindu calendar, which varies in duration prevails at sunrise on both days, or on neither day, then the first day is to be chosen.
However, for the Nine Nights of Chaitra Chaitra Navaratra: a major spring festival dedicated to the Goddess, the ritual should be observed when the second lunar day is present at sunrise. At the end of the lunar day, one should perform the ceremonial oil bath original: "abhyanga" and the charitable donation of water-sheds original: "prapādāna": the act of providing free water to travelers during the heat of spring.
Regarding the Vow to Gauri Gauri Vrata: a ritual dedicated to the goddess Parvati on the third lunar day: even if the third day lasts for only a single muhurta Muhurta: a unit of time lasting 48 minutes, the following day should be chosen.
This day is also a Manvadi Manvadi: the anniversary of the start of a Manvantara, or cosmic age of a Manu. All such Manvadi days occurring in the bright fortnight should be observed during the morning hours.
However, Hemadri The 13th-century scholar mentioned on the previous page argues that they are fit for the afternoon.
Regarding Rama Navami The birthday of Lord Rama on the ninth day of the bright fortnight: this should be observed when the lunar day prevails at midday. If it occurs at midday on both days or neither, even if it is joined with the Punarvasu Punarvasu: an auspicious star constellation or Nakshatra associated with Rama's birth asterism, the previous day is taken if it accords with family tradition; otherwise, the following day is taken if it lasts at least three muhurtas.
Otherwise, the previous day is generally preferred. Regarding the fourteenth day of the bright fortnight, for the purposes of family traditions and rituals, Madhava The 14th-century authority Madhavacharya states it should be taken when it prevails in the evening. Kamala likely referring to Kamalakara Bhatta, author of the Nirnaya Sindhu states that if there is no overlap with three muhurtas in the evening of the previous day, the following day is chosen. Regarding the Full Moon—