Guru Purnima 2028 in Kolkata

📜 How this date was determined

Purnima pervades sunrise kaal on more than one day (2028-07-05 100%, 2028-07-06 100%) — tithi-vriddhi. The day is decided by pervasion of the rite's own kaal, not by which day holds more of the tithi — “ह्रासवृद्धी न कारणम्”. This is darpa, and Vyaghra gives darpa to the later day: “खर्वेदर्पौ परौ पूज्यौ”. Purnima prevailing at sunrise. Dharma Sindhu confirms it: “पूर्णिमामावास्ये तु सावित्रीव्रतं विना परे ग्राह्ये” — Purnima is taken on the later day.

Computed by Trikaal Vaani from Swiss Ephemeris and the classical nirnaya rules — Nirnaya Sindhu, Dharma Sindhu, and the Report of the Calendar Reform Committee. Not copied from another calendar.