🪷 गुरु पूर्णिमा / व्यास पूर्णिमा · Guru Pūrṇimā / Vyāsa Pūrṇimā

Tradition

Tradition: Pan-Hindu

Vrata: No

How the day is decided

The Śukla Pūrṇimā at sunrise (the tithi at sunrise is whole for the day's rites); when it holds at two sunrises, the second day (the tithi's chapter); touching no sunrise, the day it runs.

Source: Dharmasindhu, tithi-nirṇaya (OCR 1158-1166 yugma, 1351-1790 by tithi). 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": 15,
  "tithi_paksha": "Śukla",
  "lunar_month": "Āṣāḍha"
}