Define a period

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How many working days in year 2090?

Here is the detail of the calculation:

Because 2090 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 2090.

Here is the list of these 9 public holidays:

1. Paasmaandag : Monday, 17 April, 2090
2. Dag van de Arbeid : Monday, 1 May, 2090
3. Hemelvaartsdag : Thursday, 25 May, 2090
4. Pinkstermaandag : Monday, 5 June, 2090
5. Feest van de Vlaamse Gemeenschap : Tuesday, 11 July, 2090
6. Nationale Feestdag : Friday, 21 July, 2090
7. Onze-Lieve-Vrouw Hemelvaart : Tuesday, 15 August, 2090
8. Allerheiligen : Wednesday, 1 November, 2090
9. Kerstmis : Monday, 25 December, 2090

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

1. Nieuwjaarsdag : Sunday, 1 January, 2090
2. Wapenstilstand : Saturday, 11 November, 2090