Including the start and end dates in the calculation, there are 88 days between the two dates.
There are about 1184 days between September 17 2007 to December 14 2010.
90.
September has 30 days. December has 31 days
26,572 days
Between the 15th of December in one year and the 3rd of September in the next year, is 262 days, unless the September is in a leap year, in which case it is 263 days.
Between September 23 and December 23 there are 91 days inclusive.
85 days
Including the start and end dates in the calculation, there are 459 days between the two dates.
Including the start and end dates in the calculation, there are 1366 days between the two dates.
Including the start and end dates in the calculation, there are 4649 days between the two dates.
In a leap year or any year, there are 121 days between the 1st of September and the 31st of December.
In any given year, and including the start and end dates in the calculation, there are 99 days between the two dates.