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How many working days in year 2100?

Here is the detail of the calculation:

Because 2100 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 6 public holidays that do not fall during a weekend and we obtain 255 working days in 2100.

Here is the list of these 6 public holidays:

1. Capodanno : пятница, 1 январь, 2100
2. Epifania : среда, 6 январь, 2100
3. Lunedì di Pasqua : понедельник, 29 март, 2100
4. Festa della Repubblica Italia : среда, 2 июнь, 2100
5. Ognissanti o Tutti i Santi : понедельник, 1 ноябрь, 2100
6. Immacolata Concezione : среда, 8 декабрь, 2100

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

1. Anniversario Liberazione : воскресенье, 25 апрель, 2100
2. Festa del lavoro : суббота, 1 май, 2100
3. Ferragosto o Assunzione : воскресенье, 15 август, 2100
4. Festa di San Gennaro : воскресенье, 19 сентябрь, 2100
5. Santo Natale : суббота, 25 декабрь, 2100
6. Santo Stefano : воскресенье, 26 декабрь, 2100