7 days = 1 week 119 divided by 7 = 17 weeks
The day eight weeks ago was the same as what day it is today, except eight weeks earlier.
The day of the week 10 weeks ago was the same day of the week that it is today.
For the date October 3rd, ten weeks ago would have been July 25th. (This answer would depend, obviously, on what day the question was asked.)
To determine the specific day 93 weeks ago, you would need to know the starting date.
That would depend entirely on the day you asked the question.
tuesday
Whatever day it was five weeks and five days ago. In this case, given today is Friday, it would have been Sunday.
This question was asked on a Friday and exactly 11 weeks ago it was also a Friday.
This question was asked on a Saturday and exactly 38 weeks ago it was also a Saturday.
Today in May 9, 2014. If you subtract 41 weeks, the date would be July 26, 2013. The day was a Friday and the 207th day of 2013.
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.