Define a period

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How many working days in year 1956?

Here is the detail of the calculation:

Because 1956 is a leap year, it has 366 days.

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

Now, let's remove 11 public holidays that do not fall during a weekend and we obtain 250 working days in 1956.

Here is the list of these 11 public holidays:

1. Jour de l'An : Monday, 2 January, 1956
2. Jour de la Sainte Dévote : Friday, 27 January, 1956
3. Lundi de Pâques : Monday, 2 April, 1956
4. Fête du Travail : Tuesday, 1 May, 1956
5. Jeudi de l'Ascension : Thursday, 10 May, 1956
6. Lundi de la Pentecôte : Monday, 21 May, 1956
7. Jour de la fête Dieu : Thursday, 31 May, 1956
8. Fête de l'Assomption : Wednesday, 15 August, 1956
9. Fête de la Toussaint : Thursday, 1 November, 1956
10. Fête Nationale : Monday, 19 November, 1956
11. Jour de Noël : Tuesday, 25 December, 1956

And here are the 2 public holidays falling on a weekend:

1. Jour de l'An : Sunday, 1 January, 1956
2. Fête de l'Immaculée Conception : Saturday, 8 December, 1956