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How many working days in year 1990?

Here is the detail of the calculation:

Because 1990 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 8 public holidays that do not fall during a weekend and we obtain 253 working days in 1990.

Here is the list of these 8 public holidays:

1. Jour de l'An : понедельник, 1 январь, 1990
2. Lundi de Pâques : понедельник, 16 апрель, 1990
3. Fête du Travail : вторник, 1 май, 1990
4. Jeudi de l'Ascension : четверг, 24 май, 1990
5. Lundi de la Pentecôte : понедельник, 4 июнь, 1990
6. Assomption : среда, 15 август, 1990
7. Toussaint : четверг, 1 ноябрь, 1990
8. Noël : вторник, 25 декабрь, 1990

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

1. Fête Nationale : суббота, 21 июль, 1990
2. Fête de l'Armistice : воскресенье, 11 ноябрь, 1990