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How many working days in year 1916?
Here is the detail of the calculation:
Because 1916 is a leap year, it has 366 days.
Let's remove 53 saturdays and 53 sundays. It remains 260 days.
Now, let's remove 10 public holidays that do not fall during a weekend and we obtain 250 working days in 1916.
 Here is the list of these 10 public holidays: 
 
 1. New Year's Day (observance) : Monday, 3 January, 1916 
2. Family Day : Monday, 21 February, 1916 
3. Good Friday : Friday, 21 April, 1916 
4. Victoria Day : Monday, 22 May, 1916 
5. Canada Day (observance) : Monday, 3 July, 1916 
6. August Civic Holiday : Monday, 7 August, 1916 
7. Labour Day : Monday, 4 September, 1916 
8. Thanksgiving : Monday, 9 October, 1916 
9. Christmas : Monday, 25 December, 1916 
10. Boxing Day : Tuesday, 26 December, 1916 
And here are the 2 public holidays falling on a weekend:
1. New Year's Day : Saturday, 1 January, 1916 
2. Canada Day : Saturday, 1 July, 1916