It was 68 weeks and 3 days.
There are 18 weeks from 26 January until June 1, 2010.
Between January 1st 2010 and May 1st 2010 there are 121 days. There are 12.7 weeks between January and May of 2010.
73 weeks (rounded down)
There are 42 weeks between January 4 and November 1, 2010.
As today is January 27, 2010 there are 21 weeks until 23 June, 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
Between January 1, 2010 and August 1, 2010 there were 30 weeks and 2 days.
There are 26 weeks between January 1, 2010 and July 1, 2010.
As today is January 11, 200 there are 24 weeks until June 28, 2010.
9 weeks until the 25th of January (from Nov 23 2010).
19 weeks.
There are 48 weeks and 6 days between January 1 2010 and December 9 2010.