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How many working days in year 1915?

Here is the detail of the calculation:

Because 1915 is not a leap year, it has 365 days.

Let's remove 52 saturdays and 52 sundays. It remains 261 days.

Now, let's remove 7 public holidays that do not fall during a weekend and we obtain 254 working days in 1915.

Here is the list of these 7 public holidays:

1. New Year's Day : пятница, 1 январь, 1915
2. Independence Day : среда, 24 февраль, 1915
3. Good Friday : пятница, 2 апрель, 1915
4. Victory Day : среда, 23 июнь, 1915
5. Midsummer Day : четверг, 24 июнь, 1915
6. Independence Restoration Day : пятница, 20 август, 1915
7. Christmas Eve : пятница, 24 декабрь, 1915

And here are the 5 public holidays falling on a weekend:

1. Easter : воскресенье, 4 апрель, 1915
2. Spring Day : суббота, 1 май, 1915
3. Pentecost : воскресенье, 23 май, 1915
4. Christmas Day : суббота, 25 декабрь, 1915
5. Second Day of Christmas : воскресенье, 26 декабрь, 1915