From July 1st, 2009, and December 1st, 2009, there are 22 weeks.
Between July 1, 2008 and April 1, 2009 there were 39 weeks.
There are 5 months and 10 days between July 2 and December 13, 2009.
Between July 23, 2009 and December 31, 2009 there were 161 days.
26 weeks
21 weeks and 5 days
40 weeks
23 from July 1st to December 1st
90 weeks and 1 day.
The date exactly in the middle of the year between January 1, 2009 and December 31, 2009 falls between July 2 and 3.
60 weeks and 6 days.
Adding 6 weeks to Friday July 24, 2009 gives Friday September 4, 2009.
There are 26 weeks from July 1, 2013, to December 31, 2013.