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How many working days in year 1960?

Here is the detail of the calculation:

Because 1960 is a leap year, it has 366 days.

Let's remove 53 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 1960.

Here is the list of these 7 public holidays:

1. Jour de l'An : пятница, 1 январь, 1960
2. Vendredi Saint : пятница, 15 апрель, 1960
3. Lundi de Pâques : понедельник, 18 апрель, 1960
4. Jeudi de l'Ascension : четверг, 26 май, 1960
5. Lundi de la Pentecôte : понедельник, 6 июнь, 1960
6. Fête nationale suisse : понедельник, 1 август, 1960
7. Saint Étienne : понедельник, 26 декабрь, 1960

And here is the public holiday falling on a weekend:

1. Noël : воскресенье, 25 декабрь, 1960