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How many working days in year 1983?

Here is the detail of the calculation:

Because 1983 is not a leap year, it has 365 days.

Let's remove 53 saturdays and 52 sundays. It remains 260 days.

Now, let's remove 3 public holidays that do not fall during a weekend and we obtain 257 working days in 1983.

Here is the list of these 3 public holidays:

1. Vendredi Saint : пятница, 1 апрель, 1983
2. Lundi de Pâques : понедельник, 4 апрель, 1983
3. Saint Etienne : понедельник, 26 декабрь, 1983

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

1. Jour de l'An : суббота, 1 январь, 1983
2. Fête du Travail : воскресенье, 1 май, 1983
3. Clotûre de la bourse à 14h : суббота, 24 декабрь, 1983
4. Noël : воскресенье, 25 декабрь, 1983
5. Clotûre de la bourse à 14h : суббота, 31 декабрь, 1983