Define a period

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How many working days in year 2020?

Here is the detail of the calculation:

Because 2020 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 254 working days in 2020.

Here is the list of these 8 public holidays:

1. Nieuwjaar : Wednesday, 1 January, 2020
2. Goede Vrijdag : Friday, 10 April, 2020
3. Tweede Paasdag : Monday, 13 April, 2020
4. Koningsdag : Monday, 27 April, 2020
5. Bevrijdingsdag : Tuesday, 5 May, 2020
6. Hemelvaartsdag : Thursday, 21 May, 2020
7. Tweede Pinksterdag : Monday, 1 June, 2020
8. Eerste Kerstdag : Friday, 25 December, 2020

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

1. Eerste Paasdag : Sunday, 12 April, 2020
2. Eerste Pinksterdag : Sunday, 31 May, 2020
3. Tweede Kerstdag : Saturday, 26 December, 2020