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How many working days in year 1928?

Here is the detail of the calculation:

Because 1928 is a leap year, it has 366 days.

Let's remove 52 saturdays and 53 sundays. It remains 261 days.

Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 252 working days in 1928.

Here is the list of these 9 public holidays:

1. Saint-Berchtold : понедельник, 2 январь, 1928
2. Vendredi Saint : пятница, 6 апрель, 1928
3. Lundi de Pâques : понедельник, 9 апрель, 1928
4. Fête du Travail : вторник, 1 май, 1928
5. Jeudi de l'Ascension : четверг, 17 май, 1928
6. Lundi de la Pentecôte : понедельник, 28 май, 1928
7. Fête nationale suisse : среда, 1 август, 1928
8. Noël : вторник, 25 декабрь, 1928
9. Saint Étienne : среда, 26 декабрь, 1928

And here is the public holiday falling on a weekend:

1. Jour de l'An : воскресенье, 1 январь, 1928