The 11th of August 2011 was 12 weeks before the 3rd of November 2011 and the 26th of January 2012 was 12 weeks after it.
Thursday the 19th of January 2012 is 12 weeks after it and the 4th of August 2011 was 12 weeks before it.
There are 56.5 weeks between August 1, 2011 and August 31, 2012.
There are 26 weeks (and 3 days) between August 2010 to February 1 2011.
Subtracting 40 weeks from July 15, 2012 gives October 9, 2011.
Monday, February 14, 2011
Adding 12 weeks, that is, 84 days, to August 14, 2011, gives November 6, 2011.
There are 26 weeks (and 3 days) between August 2010 to February 1 2011.
There are a total of 13 weeks and 4 days between May 6 and August 9.
52 weeks and one day.
The date 52 weeks ago from yesterday was exactly one year before yesterday's date.
The 27th of August 2011.