24 weeks and 5 days.
About 78 weeks between June 2009 and December 2010.
19 weeks.
29 weeks are between February 3 2010 and August 25 2010.
Between January 1st 2010 and May 1st 2010 there are 121 days. There are 12.7 weeks between January and May of 2010.
There are 42 weeks between January 4 and November 1, 2010.
If you mean to ask what number of weeks are between the start of January 2010 and the start of July 2010 then the answer is 26
104.4 weeks
52 weeks (rounded down).
24 weeks and 2 days.
44 weeks and 5 days!
23 weeks and 3 days.
25 weeks and 6 days.