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How many working days in year 2011?
Here is the detail of the calculation:
Because 2011 is not a leap year, it has 365 days.
Let's remove 53 saturdays and 52 sundays. It remains 260 days.
Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 251 working days in 2011.
 Here is the list of these 9 public holidays: 
 
 1. New Year's Day (observance) : Monday, 3 January, 2011 
2. Good Friday : Friday, 22 April, 2011 
3. Victoria Day : Monday, 23 May, 2011 
4. National Aboriginal Day : Tuesday, 21 June, 2011 
5. Canada Day : Friday, 1 July, 2011 
6. Discovery Day : Monday, 15 August, 2011 
7. Labour Day : Monday, 5 September, 2011 
8. Thanksgiving : Monday, 10 October, 2011 
9. Remembrance Day : Friday, 11 November, 2011 
And here are the 2 public holidays falling on a weekend:
1. New Year's Day : Saturday, 1 January, 2011 
2. Christmas : Sunday, 25 December, 2011