78 weeks (rounded down).
From July 1st, 2009, and December 1st, 2009, there are 22 weeks.
Weeks there were between January 1 2009 to December 31 2009 is 52.
There were 13 weeks between October 1 and December 1, 2009.
About 78 weeks between June 2009 and December 2010.
There are 99 weeks (23 mounths) between February 2009 and December 2010.
Between August 14 2009 and December 8, 2009 there were 16 weeks and 4 days.
There are 28 weeks and 2 days between June 6, 2009 and December 21, 2009.
260 weeks and 6 days.
Weeks from October 1 2007 to May 31 2009 are a little over 86 weeks.
Nearly 22 weeks.
There were 52 weeks in the calendar for the year 2007. This started with the day January 1, 2007, and ended with December 30, 2007.
15 July 2007 until the 13 September 2009 is 113 weeks.