All Poosam timings are calculated according to ⚠ Indian Standard Time (IST). - Download poosam calendar 1857

S.No	Gregorian Date	Weekday	Traditional Month & Date	Poosam Start Time	Poosam End Time	Star Duration
1	27-05-1857	Wednesday	వైశాఖము 15	27-05-1857 10:58 AM IST	28-05-1857 10:58 AM IST	24 Hours 0 Mins 1 Secs