FestivalCalculated · close call
Tulasi Vivah
Kartika Shukla Dwadashi
Tithi: 06:40 am to 08:02 am (next day)
A description of this observance hasn't been written yet.
How this date was worked out: Kartika Shukla Dwadashi 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.