Adding 40 weeks to January 1, 2010 gives October 8, 2010.
There are 26 weeks between January 1, 2010 and July 1, 2010.
There are a total of 22 weeks from January 1, 2010, to June 11, 2010.
Between January 1 and November 1, 2010 there were 43 weeks and 2 days.
There are 48 weeks and 6 days between January 1 2010 and December 9 2010.
Between January 1, 2010 and August 1, 2010 there were 30 weeks and 2 days.
There are 42 weeks between January 4 and November 1, 2010.
52 weeks.
19 weeks.
52 weeks and 1 day.
There are 18 weeks from 26 January until June 1, 2010.
There are 30 weeks and 2 days between those dates
25 weeks and 6 days.