Define a period

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How many working days in year 2018?

Here is the detail of the calculation:

Because 2018 is not a leap year, it has 365 days.

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

Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 253 working days in 2018.

Here is the list of these 8 public holidays:

1. Nieuwjaar : Monday, 1 January, 2018
2. Goede Vrijdag : Friday, 30 March, 2018
3. Tweede Paasdag : Monday, 2 April, 2018
4. Koningsdag : Friday, 27 April, 2018
5. Hemelvaartsdag : Thursday, 10 May, 2018
6. Tweede Pinksterdag : Monday, 21 May, 2018
7. Eerste Kerstdag : Tuesday, 25 December, 2018
8. Tweede Kerstdag : Wednesday, 26 December, 2018

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

1. Eerste Paasdag : Sunday, 1 April, 2018
2. Eerste Pinksterdag : Sunday, 20 May, 2018