All Poosam timings are calculated according to ⚠ Indian Standard Time (IST). - Download poosam calendar 1866

S.No	Gregorian Date	Weekday	Traditional Month & Date	Poosam Start Time	Poosam End Time	Star Duration
1	26-11-1866	Monday	कार्तिक 12	26-11-1866 08:47 AM IST	27-11-1866 07:47 AM IST	23 Hours 0 Mins 1 Secs