How the date is decided
Vaishakha Shukla Purnima, observed on the day the tithi prevails at sunrise, as the almanacs reckon it for New Delhi.
2027: the tithi runs from Wed, 19 May 2027, 4:03 PM to Thu, 20 May 2027, 4:29 PM (IST).
2028: the tithi runs from Mon, 8 May 2028, 3:33 AM to Tue, 9 May 2028, 1:18 AM (IST).
Dates follow the common North Indian reckoning for New Delhi and agree with the leading almanacs. Regional calendars can differ by a day; your family’s panchangam has the final word. For your own town’s times, see today’s panchang.