From Sunday the 25th of January 2015, when the question was asked, Sunday the 26th of January 2014 was 52 weeks ago.
August 1, 2011
57 weeks and either 1 day or 2 days, depending on whether it's a leap year.
There were 52 weeks and 1 day in 2011. It started on a Saturday, which would be part of one calendar week, and then had 52 weeks after that, so there were 53 Saturdays in 2011 and 52 of all other days.
Assuming a week of exactly 52 weeks, 506 weeks is equal to 506/52 = 9.7307692 recurring (that is, 9.7307692307692...) years or 9 years 38 weeks.
calendar date 13 weeks ago
There were 52 weeks in the year 2013.
The day eight weeks ago was the same as what day it is today, except eight weeks earlier.
There are 52 weeks and 1 day in a regular year and 52 weeks and 2 days in a leap year, so 51 weeks ago is 8 days less than a year ago if there is no leap year day during the past year. If there is a leap year day during the past year, 51 weeks ago is 9 days less than a year ago. For example, if you are trying to calculate 51 weeks before October 1, 2014, you would subtract 1 year then add back 8 days (because 2014 is a regular year). So 51 weeks before October 1, 2014 is October 9, 2013.
The day of the week 10 weeks ago was the same day of the week that it is today.
52 weeks and 1 day.
52 weeks and one day
52 weeks and 1 day.
about 52 weeks and 1 day
52 weeks
52 weeks and one day (on leap year it is just 52 weeks).
August 1, 2011
Zero. Each year is either 52 weeks and 1 day, or 52 weeks and 2 days (Leap Year). So no year is 52 weeks and so probability = 0.