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How many working days in year 1911?

Here is the detail of the calculation:

Because 1911 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 6 public holidays that do not fall during a weekend and we obtain 254 working days in 1911.

Here is the list of these 6 public holidays:

1. Independence Day : пятница, 24 февраль, 1911
2. Good Friday : пятница, 14 апрель, 1911
3. Spring Day : понедельник, 1 май, 1911
4. Victory Day : пятница, 23 июнь, 1911
5. Christmas Day : понедельник, 25 декабрь, 1911
6. Second Day of Christmas : вторник, 26 декабрь, 1911

And here are the 6 public holidays falling on a weekend:

1. New Year's Day : воскресенье, 1 январь, 1911
2. Easter : воскресенье, 16 апрель, 1911
3. Pentecost : воскресенье, 4 июнь, 1911
4. Midsummer Day : суббота, 24 июнь, 1911
5. Independence Restoration Day : воскресенье, 20 август, 1911
6. Christmas Eve : воскресенье, 24 декабрь, 1911