Define a period

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How many working days in year 2012?

Here is the detail of the calculation:

Because 2012 is a leap year, it has 366 days.

Let's remove 52 saturdays and 53 sundays. It remains 261 days.

Now, let's remove 7 public holidays that do not fall during a weekend and we obtain 254 working days in 2012.

Here is the list of these 7 public holidays:

1. Goede Vrijdag : Friday, 6 April, 2012
2. Tweede Paasdag : Monday, 9 April, 2012
3. Koninginnedag : Monday, 30 April, 2012
4. Hemelvaartsdag : Thursday, 17 May, 2012
5. Tweede Pinksterdag : Monday, 28 May, 2012
6. Eerste Kerstdag : Tuesday, 25 December, 2012
7. Tweede Kerstdag : Wednesday, 26 December, 2012

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

1. Nieuwjaar : Sunday, 1 January, 2012
2. Eerste Paasdag : Sunday, 8 April, 2012
3. Eerste Pinksterdag : Sunday, 27 May, 2012