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
There are 26 weeks between January 1, 2010 and July 1, 2010.
19 weeks.
There are 48 weeks and 6 days between January 1 2010 and December 9 2010.
Between January 1 and November 1, 2010 there were 43 weeks and 2 days.
34 weeks and 4 days.
52 weeks (rounded down).
25 weeks and 6 days.
23 weeks and 3 days.
A little over 43 weeks between March 4 2010 and January 5 2011.
A little over 97 weeks between January 28 2009 and December 12 2010.