All Poosam timings are calculated according to ⚠ Indian Standard Time (IST). - Download poosam calendar 1991

S.No	Gregorian Date	Weekday	Traditional Month & Date	Poosam Start Time	Poosam End Time	Star Duration
1	18-05-1991	Saturday	ഇടവം 4	18-05-1991 05:58 PM IST	19-05-1991 04:58 PM IST	23 Hours 0 Mins 1 Secs