Define a period

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How many working days in year 1950?

Here is the detail of the calculation:

Because 1950 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 9 public holidays that do not fall during a weekend and we obtain 251 working days in 1950.

Here is the list of these 9 public holidays:

1. Paasmaandag : Monday, 10 April, 1950
2. Dag van de Arbeid : Monday, 1 May, 1950
3. Hemelvaartsdag : Thursday, 18 May, 1950
4. Pinkstermaandag : Monday, 29 May, 1950
5. Nationale Feestdag : Friday, 21 July, 1950
6. Onze-Lieve-Vrouw Hemelvaart : Tuesday, 15 August, 1950
7. Allerheiligen : Wednesday, 1 November, 1950
8. Koningsdag : Wednesday, 15 November, 1950
9. Kerstmis : Monday, 25 December, 1950

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

1. Nieuwjaarsdag : Sunday, 1 January, 1950
2. Wapenstilstand : Saturday, 11 November, 1950