There are 10957 days between the two dates. Dividing this by 7 gives 1565.285714 recurring (that is, 1565.285714285714...) weeks or 1565 weeks 2 days.
There are 117.4 weeks from July 2008 until October 2010.
8 weeks and 5 days. October 25 2010
18 weeks (rounded down) from 23rd May 2010 until 1st October 2010.
91.9 weeks
56 weeks and 3 days
105 weeks and 2 days.
there are 30 to 31 weeks
46 weeks and 1 day.
42 weeks and 1 day.
As today is January 27, 2010 there are 141 weeks and 1 day until October 11, 2012.
well count them and then you will see
Jan 1st - Oct 31st is Forty weeks and two days - according to my Windows calendar !