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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 7 public holidays that do not fall during a weekend and we obtain 254 working days in 1990.

Here is the list of these 7 public holidays:

1. Jour de l'An : понедельник, 1 январь, 1990
2. Indépendance : четверг, 1 март, 1990
3. Vendredi Saint : пятница, 13 апрель, 1990
4. Fête du Travail : вторник, 1 май, 1990
5. Jeudi de l'Ascension : четверг, 24 май, 1990
6. Fête nationale suisse : среда, 1 август, 1990
7. Noël : вторник, 25 декабрь, 1990