How many working days in year 2056?
Here is the detail of the calculation:
Because 2056 is a leap year, it has 366 days.
Let's remove 53 saturdays and 53 sundays. It remains 260 days.
Now, let's remove 10 public holidays that do not fall during a weekend and we obtain 250 working days in 2056.
 Here is the list of these 10 public holidays: 
 
 1. Lundi de Pâques : понедельник, 3 апрель, 2056 
2. Fête du Travail : понедельник, 1 май, 2056 
3. Journée de l’Europe : вторник, 9 май, 2056 
4. Jeudi de l'Ascension : четверг, 11 май, 2056 
5. Lundi de la Pentecôte : понедельник, 22 май, 2056 
6. Fête Nationale : пятница, 23 июнь, 2056 
7. Assomption : вторник, 15 август, 2056 
8. Toussaint : среда, 1 ноябрь, 2056 
9. Noël : понедельник, 25 декабрь, 2056 
10. Saint-Étienne : вторник, 26 декабрь, 2056 
And here is the public holiday falling on a weekend:
1. Jour de l'An : суббота, 1 январь, 2056