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	02-01-1866	Tuesday	మార్గశిరము 20	02-01-1866 01:21 PM IST	03-01-1866 01:21 PM IST	24 Hours 0 Mins 1 Secs
2	30-01-1866	Tuesday	పుష్యము 19	29-01-1866 10:26 PM IST	30-01-1866 10:26 PM IST	24 Hours 0 Mins 1 Secs
3	26-02-1866	Monday	మాఘము 16	26-02-1866 05:42 AM IST	27-02-1866 06:42 AM IST	25 Hours 0 Mins 1 Secs
4	25-03-1866	Sunday	ఫాల్గుணము 13	25-03-1866 11:23 AM IST	26-03-1866 12:23 PM IST	25 Hours 0 Mins 1 Secs
5	21-04-1866	Saturday	చైత్రము 10	21-04-1866 05:17 PM IST	22-04-1866 06:17 PM IST	25 Hours 0 Mins 1 Secs
6	19-05-1866	Saturday	వైశాఖము 7	19-05-1866 01:06 AM IST	20-05-1866 01:06 AM IST	24 Hours 0 Mins 1 Secs
7	15-06-1866	Friday	జ్యేష్ఠము 3	15-06-1866 10:55 AM IST	16-06-1866 09:55 AM IST	23 Hours 0 Mins 1 Secs
8	13-07-1866	Friday	జ్యేష్ఠము 31	12-07-1866 09:13 PM IST	13-07-1866 08:13 PM IST	23 Hours 0 Mins 1 Secs
9	09-08-1866	Thursday	ఆషాఢము 26	09-08-1866 06:11 AM IST	10-08-1866 05:11 AM IST	23 Hours 0 Mins 1 Secs
10	05-09-1866	Wednesday	శ్రావణము 22	05-09-1866 12:57 PM IST	06-09-1866 12:57 PM IST	24 Hours 0 Mins 1 Secs
11	02-10-1866	Tuesday	భాద్రపదము 18	02-10-1866 06:21 PM IST	03-10-1866 06:21 PM IST	24 Hours 0 Mins 1 Secs
12	30-10-1866	Tuesday	ఆశ్వయుజము 15	30-10-1866 12:29 AM IST	31-10-1866 12:29 AM IST	24 Hours 0 Mins 1 Secs
13	26-11-1866	Monday	కార్తీకము 12	26-11-1866 08:47 AM IST	27-11-1866 07:47 AM IST	23 Hours 0 Mins 1 Secs
14	23-12-1866	Sunday	మార్గశిరము 10	23-12-1866 07:00 PM IST	24-12-1866 05:00 PM IST	22 Hours 0 Mins 1 Secs