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 8 public holidays that do not fall during a weekend and we obtain 253 working days in 2012.

Here is the list of these 8 public holidays:

1. Skærtorsdag : Thursday, 5 April, 2012
2. Langfredag : Friday, 6 April, 2012
3. 2. påskedag : Monday, 9 April, 2012
4. Store Bededag : Friday, 4 May, 2012
5. Kristi Himmelfartsdag : Thursday, 17 May, 2012
6. 2. pinsedag : Monday, 28 May, 2012
7. Juledag : Tuesday, 25 December, 2012
8. 2. juledag : Wednesday, 26 December, 2012

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

1. Nytårsdag : Sunday, 1 January, 2012
2. Påskedag : Sunday, 8 April, 2012
3. Pinsedag : Sunday, 27 May, 2012