There are 30 days in September.
From the 1st January, 2010 to 1st September, 2010 there are 244 days.
43 days
206 days.
There are 100 days, inclusive of the dates given.
3 days until September 16 2010 (from September 13 2010, today).
215 days.
158 days until September 13 2010 (from April 8 2010).
9 months.
As today is January 27, 2010 there are 216 days until September 1, 2010.
Calculated on 12, May, 2010, there are 141 days until September 29, 2010.
That will depend on where you start counting from. We cannot be exactly sure when time began, so there is no definite answer as to how many years had passed by September 10 2010. At the time of answering the question, the 29th of December 2013, 3 years and 3 months and 19 days have passed since September the 10th 2010.