All Poosam timings are calculated according to ⚠ Indian Standard Time (IST). - Download poosam calendar 1861

S.No	Gregorian Date	Weekday	Traditional Month & Date	Poosam Start Time	Poosam End Time	Star Duration
1	15-05-1861	Wednesday	Vaikasi 3	15-05-1861 01:07 PM IST	16-05-1861 02:07 PM IST	25 Hours 0 Mins 1 Secs