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How many working days in year 2147?

Here is the detail of the calculation:

Because 2147 is not a leap year, it has 365 days.

Let's remove 52 saturdays and 53 sundays. It remains 260 days.

Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 252 working days in 2147.

Here is the list of these 8 public holidays:

1. Vendredi Saint : пятница, 14 апрель, 2147
2. Jeudi de l'Ascension : четверг, 25 май, 2147
3. Fête-Dieu : четверг, 15 июнь, 2147
4. Fête nationale suisse : вторник, 1 август, 2147
5. Assomption : вторник, 15 август, 2147
6. Toussaint : среда, 1 ноябрь, 2147
7. Immaculée Conception : пятница, 8 декабрь, 2147
8. Noël : понедельник, 25 декабрь, 2147

And here is the public holiday falling on a weekend:

1. Jour de l'An : воскресенье, 1 январь, 2147