200
From February 25, 2012 to June 23, 2012 is 17 weeks, so there are 16 full weeks between the dates.
19 weeks and 5 days.
On the day the question was asked, the 9th of July 2011, there were exactly 30 weeks to the 4th of February 2012.
From the day the question was asked, the 20th of February 2012, to the 30th of June 2012 was 18 weeks and 5 days.
69 weeks and 2 days.
14 weeks and 5 days.
There are four weeks in February.
There are four weeks and a day in February!!
Including the start and end dates in the calculation, there are 20 weeks 2 days between the two dates.
There are 12000825 full weeks after February 25 of 2012 and before June of 232012 (unless we change calendars, which I'm sure we will if we don't drive ourselves to extinction first, because the Gregorian calendar's pretty stupid).
There were 52 weeks and 2 days in 2012.
52 weeks/year 2012 years * 52 weeks/year = 104624 weeks