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	04-12-1857	Friday	വൃശ്ചികം 21	04-12-1857 06:23 PM IST	05-12-1857 05:23 PM IST	23 Hours 0 Mins 1 Secs