In a leap year or any year, there are 121 days between the 1st of September and the 31st of December.
The years involved are important because some years will be a leap year. If the calculation does not include a leap year, then there are 234 days between, and including, September 1st, and April 22nd.
29586 days.
25 days.
Normally there are 25 weeks and 6 days between a 1st of September and a 1st of March. If the March is in a leap year, then there is exactly 26 weeks between the two dates.
1 Jan through 30 Sep is 39 weeks in an ordinary year and 39 weeks and one day in a leap year, so between 1 Jan and 30 Sep there are 38 weeks and five days in an ordinary year and 38 weeks and six days in a leap year.
2012 was a leap year, so: from Sept 28 2011 to Sept 28 2012 is 366 days; and from Sept 28 2012 to Sept 28 2013 is 365 days; a total of 731 days. 7 days in a week, so: 731 days ÷ 7 days/week = 1043/7 weeks ie just under 1041/2 weeks.
30
Between the 4th of September in one year and the 8th of February in the next year, there are 157 days.
Between September 23 and December 23 there are 91 days inclusive.
The total number of days between Monday, September 1st, 2014, and Saturday, November 1st, 2014, is 61 days.
Including the start and end dates in the calculation, there are 37420 days between the two dates.
Sept 30 1995 to Mar 16 2010 is 5281 days.