77 days
5 (Jan, April, July, Sept, Dec)
Between September 23 and December 23 there are 91 days inclusive.
-192
154 days
44 weeks & 6 days
In a leap year or any year, there are 121 days between the 1st of September and the 31st of December.
126As from today (Dec 1st) there are 24 days to go.As of today, the 26th of November 2012, it is 29 days to Christmas Day.
Easter 2012 will fall on April 8, so as of December 1 you will have 129 days to wait.
Including Sept 21? # Sept 21 # Sept 22 # Sept 23 # Sept 24 # Sept 25 # Sept 26 # Sept 27 # Sept 28 # Sept 29 # Sept 30 # Oct 1 # Oct 2 # Oct 3 # Oct 4 # Oct 5 # Oct 6 # Oct 7 # Oct 8 # Oct 9 # Oct 10 # Oct 11 # Oct 12 # Oct 13 # Oct 14 # Oct 15 # Oct 16 # Oct 17 # Oct 18 # Oct 19 # Oct 20 # Oct 21 # Oct 22 # Oct 23 # Oct 24 # Oct 25 # Oct 26 # Oct 27 # Oct 28 # Oct 29 # Oct 30 # Oct 31 # Nov 1 # Nov 2 # Nov 3 # Nov 4 # Nov 5 # Nov 6 # Nov 7 # Nov 8 # Nov 9 # Nov 10 # Nov 11 # Nov 12 # Nov 13 # Nov 14 # Nov 15 # Nov 16 # Nov 17 # Nov 18 # Nov 19 # Nov 20 # Nov 21 # Nov 22 # Nov 23 # Nov 24 # Nov 25 # Nov 26 # Nov 27 # Nov 28 # Nov 29 # Nov 30 # Dec 1 # Dec 2 # Dec 3 # Dec 4 # Dec 5 # Dec 6 # Dec 7 # Dec 8 # Dec 9 # Dec 10 # Dec 11 # Dec 12 # Dec 13 # Dec 14 # Dec 15 # Dec 16 # Dec 17 # Dec 18 # Dec 19 # Dec 20
189 (June: 5; July: 31; August: 31; Sept: 30; Oct: 31; Nov: 30; Dec: 31).
189 (June: 5; July: 31; August: 31; Sept: 30; Oct: 31; Nov: 30; Dec: 31).
Assuming the two dates are in the same year, and including the start and end date in the calculation, there are 101 days between September 6 and December 16.