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How many working days in year 1931?

Here is the detail of the calculation:

Because 1931 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 1931.

Here is the list of these 7 public holidays:

1. Capodanno : четверг, 1 январь, 1931
2. Epifania : вторник, 6 январь, 1931
3. Lunedì di Pasqua : понедельник, 6 апрель, 1931
4. Festa del lavoro : пятница, 1 май, 1931
5. Festa della Repubblica Italia : вторник, 2 июнь, 1931
6. Immacolata Concezione : вторник, 8 декабрь, 1931
7. Santo Natale : пятница, 25 декабрь, 1931

And here are the 4 public holidays falling on a weekend:

1. Anniversario Liberazione : суббота, 25 апрель, 1931
2. Ferragosto o Assunzione : суббота, 15 август, 1931
3. Ognissanti o Tutti i Santi : воскресенье, 1 ноябрь, 1931
4. Santo Stefano : суббота, 26 декабрь, 1931