There are 4 weeks and 2 days in December 2010.
There are 33 weeks from May 7, 2010, to December 31, 2010.
30 weeks
About 78 weeks between June 2009 and December 2010.
There are 99 weeks (23 mounths) between February 2009 and December 2010.
52 weeks.
There are 48 weeks and 6 days between January 1 2010 and December 9 2010.
52 weeks in 2010; week 1 started December 27, 2009 and week 52 starts December 19, 2010.
313 weeks.
28 weeks and 5 days.
A little over 21 weeks from 1st December 2010 to 1st May 2011.
56 weeks and 3 days
Weeks from August 30 to December 31 2010 is slightly over 17.