Define a period

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How many working days in year 1967?

Here is the detail of the calculation:

Because 1967 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 12 public holidays that do not fall during a weekend and we obtain 248 working days in 1967.

Here is the list of these 12 public holidays:

1. Jour de l'An : Monday, 2 January, 1967
2. Jour de la Sainte Dévote : Friday, 27 January, 1967
3. Lundi de Pâques : Monday, 27 March, 1967
4. Fête du Travail : Monday, 1 May, 1967
5. Jeudi de l'Ascension : Thursday, 4 May, 1967
6. Lundi de la Pentecôte : Monday, 15 May, 1967
7. Jour de la fête Dieu : Thursday, 25 May, 1967
8. Fête de l'Assomption : Tuesday, 15 August, 1967
9. Fête de la Toussaint : Wednesday, 1 November, 1967
10. Fête Nationale : Monday, 20 November, 1967
11. Fête de l'Immaculée Conception : Friday, 8 December, 1967
12. Jour de Noël : Monday, 25 December, 1967

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

1. Jour de l'An : Sunday, 1 January, 1967
2. Fête Nationale : Sunday, 19 November, 1967