There are 23 weeks (and 1 day) between January 1st and June 9th (on a 2010 calendar).
A little over 30 weeks between November 1st 2010 to June 1st 2011.
About 78 weeks between June 2009 and December 2010.
June 9, 1964, was a Tuesday.
There are 52 weeks in a year and this is five years. 5x52 equals 260 weeks.
From February 25, 2012 to June 23, 2012 is 17 weeks, so there are 16 full weeks between the dates.
between 28 and 29 weeks
There are 28 weeks and 2 days between June 6, 2009 and December 21, 2009.
A little over 21 weeks between January 1 2011 and June 1 2011.
74 weeks between June 1 2009 until November 1 2010.
52 weeks.
43 weeks
3 weeks and 3 days.