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How many working days in year 1905?

Here is the detail of the calculation:

Because 1905 is not a leap year, it has 365 days.

Let's remove 52 saturdays and 53 sundays. It remains 260 days.

Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 252 working days in 1905.

Here is the list of these 8 public holidays:

1. New Year's Day (observance) : понедельник, 2 январь, 1905
2. Good Friday : пятница, 21 апрель, 1905
3. Easter Monday : понедельник, 24 апрель, 1905
4. National Patriots' Day : понедельник, 22 май, 1905
5. Canada Day (observance) : понедельник, 3 июль, 1905
6. Labour Day : понедельник, 4 сентябрь, 1905
7. Thanksgiving : понедельник, 9 октябрь, 1905
8. Christmas : понедельник, 25 декабрь, 1905

And here are the 3 public holidays falling on a weekend:

1. New Year's Day : воскресенье, 1 январь, 1905
2. National Holiday of Quebec : суббота, 24 июнь, 1905
3. Canada Day : суббота, 1 июль, 1905