🪷 चैत्र नवरात्रि आरम्भ · Caitra Navrātri Start (Gudhi Padwā)

Tradition

Tradition: Shakta

Vrata: Yes (fasting day)

How the day is decided

In the pratipad holding a muhūrta or more after sunrise (three, failing that two, some one); never on the amāvāsyā-joined day unless the pratipad holds less than a muhūrta or touches no sunrise; at two sunrises, the first, being complete.

Source: Dharmasindhu, Navarātrārambha (OCR 4757-4769, 2361-2364). Computed on the Sūrya Siddhānta's sunrise, tithi and Moon at Ujjayinī (a city's page uses that city's sunrise).

Detection Rule (Pure Pañchāṅga-Based)

{
  "tithi_number": 1,
  "tithi_paksha": "Śukla",
  "lunar_month": "Caitra",
  "kala_rule": "navaratri-start"
}