All Poosam timings are calculated according to ⚠ Indian Standard Time (IST). - Download poosam calendar 1840

S.No	Gregorian Date	Weekday	Traditional Month & Date	Poosam Start Time	Poosam End Time	Star Duration
1	18-10-1840	Sunday	আশ্বিন 4	18-10-1840 06:22 AM IST	19-10-1840 06:22 AM IST	24 Hours 0 Mins 1 Secs