61 days in total, January has 31 and September has 30.
There are 31 days in the month of January and there are 30 days in there are 30 days in the month of September. All together, there and 61 days in January and September.
From the 1st of September to the 31st of January inclusive is 153 days.
From the 1st January, 2010 to 1st September, 2010 there are 244 days.
117 days.
123 days.
Between January 1 and September 8, 2010 there are 251 days inclusive.
270 days.
Between September 14, 2009 and January 27, 2010 there were 135 days.
100
including January and September it is 273 but without January and September it is 212And on a leap year it is 274 inclusive or 213 in-between.
Including the start and end date, there were 243 days between January 1 and September 1 2009.
246 days.