Define a period

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How many working days in year 1988?

Here is the detail of the calculation:

Because 1988 is a leap year, it has 366 days.

Let's remove 53 saturdays and 52 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 1988.

Here is the list of these 11 public holidays:

1. Jour de l'An : Friday, 1 January, 1988
2. Jour de la Sainte Dévote : Wednesday, 27 January, 1988
3. Lundi de Pâques : Monday, 4 April, 1988
4. Fête du Travail : Monday, 2 May, 1988
5. Jeudi de l'Ascension : Thursday, 12 May, 1988
6. Lundi de la Pentecôte : Monday, 23 May, 1988
7. Jour de la fête Dieu : Thursday, 2 June, 1988
8. Fête de l'Assomption : Monday, 15 August, 1988
9. Fête de la Toussaint : Tuesday, 1 November, 1988
10. Fête de l'Immaculée Conception : Thursday, 8 December, 1988
11. Jour de Noël : Monday, 26 December, 1988

And here are the 3 public holidays falling on a weekend:

1. Fête du Travail : Sunday, 1 May, 1988
2. Fête Nationale : Saturday, 19 November, 1988
3. Jour de Noël : Sunday, 25 December, 1988