Vrat (fast)Calculated · close call
Vat Purnima Vrat
Jyeshtha Shukla Purnima
Tithi: 04:54 am to 04:49 am (next day)
A description of this observance hasn't been written yet.
How this date was worked out: Jyeshtha Shukla Purnima prevailing at sunrise. The tithi changes within half an hour of that moment here, so some almanacs may list the day before or after: check your local almanac.