34 weeks and 6 days.
2012 was a leap year, so: from Sept 28 2011 to Sept 28 2012 is 366 days; and from Sept 28 2012 to Sept 28 2013 is 365 days; a total of 731 days. 7 days in a week, so: 731 days ÷ 7 days/week = 1043/7 weeks ie just under 1041/2 weeks.
63 weeks.
Since this is just one year, there are 52 weeks from May 2011 to May 2012.
There are 56.5 weeks between August 1, 2011 and August 31, 2012.
From the beginning of February, 2011 through the end of August, 2011 was 30 weeks and 1 day. From the beginning of January, 2011 through the end of September, 2011 was 38 weeks and 6 days.
13 weeks
none - we are in 2012 now
April 8, 2012 is exactly 17 weeks after December 11, 2011.
4023
A little over 74 weeks are between 1st March 2011 and 1st August 2012.
19 weeks and 2 days.
45 weeks and 1 day.