Определить период

...

How many working days in year 2104?

Here is the detail of the calculation:

Because 2104 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 253 working days in 2104.

Here is the list of these 9 public holidays:

1. Capodanno : вторник, 1 январь, 2104
2. Lunedì di Pasqua : понедельник, 14 апрель, 2104
3. Anniversario Liberazione : пятница, 25 апрель, 2104
4. Festa del lavoro : четверг, 1 май, 2104
5. Festa della Repubblica Italia : понедельник, 2 июнь, 2104
6. Ferragosto o Assunzione : пятница, 15 август, 2104
7. Immacolata Concezione : понедельник, 8 декабрь, 2104
8. Santo Natale : четверг, 25 декабрь, 2104
9. Santo Stefano : пятница, 26 декабрь, 2104

And here are the 2 public holidays falling on a weekend:

1. Epifania : воскресенье, 6 январь, 2104
2. Ognissanti o Tutti i Santi : суббота, 1 ноябрь, 2104