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How many working days in year 1976?

Here is the detail of the calculation:

Because 1976 is a leap year, it has 366 days.

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

Now, let's remove 5 public holidays that do not fall during a weekend and we obtain 257 working days in 1976.

Here is the list of these 5 public holidays:

1. Jour de l'An : четверг, 1 январь, 1976
2. Vendredi Saint : пятница, 16 апрель, 1976
3. Jeudi de l'Ascension : четверг, 27 май, 1976
4. Fête-Dieu : четверг, 17 июнь, 1976
5. Toussaint : понедельник, 1 ноябрь, 1976

And here are the 4 public holidays falling on a weekend:

1. Fête nationale suisse : воскресенье, 1 август, 1976
2. Assomption : воскресенье, 15 август, 1976
3. Noël : суббота, 25 декабрь, 1976
4. Saint Étienne : воскресенье, 26 декабрь, 1976