How many working days in year 1912?
Here is the detail of the calculation:
Because 1912 is a leap year, it has 366 days.
Let's remove 52 saturdays and 52 sundays. It remains 262 days.
Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 253 working days in 1912.
 Here is the list of these 9 public holidays: 
 
 1. New Year's Day : понедельник, 1 январь, 1912 
2. Family Day : понедельник, 19 февраль, 1912 
3. Good Friday : пятница, 5 апрель, 1912 
4. Victoria Day : понедельник, 20 май, 1912 
5. Canada Day : понедельник, 1 июль, 1912 
6. Labour Day : понедельник, 2 сентябрь, 1912 
7. Thanksgiving : понедельник, 14 октябрь, 1912 
8. Christmas : среда, 25 декабрь, 1912 
9. Boxing Day : четверг, 26 декабрь, 1912