All Poosam timings are calculated according to ⚠ Indian Standard Time (IST). - Download poosam calendar 1858

S.No	Gregorian Date	Weekday	Traditional Month & Date	Poosam Start Time	Poosam End Time	Star Duration
1	17-05-1858	Monday	ഇടവം 5	17-05-1858 06:37 PM IST	18-05-1858 05:38 PM IST	23 Hours 0 Mins 1 Secs