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	22-12-1858	Wednesday	অগ্রহায়ণ 9	22-12-1858 01:29 PM IST	23-12-1858 11:29 AM IST	22 Hours 0 Mins 1 Secs