Define a period

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How many working days in year 2003?

Here is the detail of the calculation:

Because 2003 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 9 public holidays that do not fall during a weekend and we obtain 252 working days in 2003.

Here is the list of these 9 public holidays:

1. Første nyttårsdag : Wednesday, 1 January, 2003
2. Skjærtorsdag : Thursday, 17 April, 2003
3. Langfredag : Friday, 18 April, 2003
4. Andre påskedag : Monday, 21 April, 2003
5. Første mai : Thursday, 1 May, 2003
6. Kristi Himmelfartsdag : Thursday, 29 May, 2003
7. Andre pinsedag : Monday, 9 June, 2003
8. Første Juledag : Thursday, 25 December, 2003
9. Andre Juledag : Friday, 26 December, 2003

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

1. Første påskedag : Sunday, 20 April, 2003
2. Grunnlovsdagen : Saturday, 17 May, 2003
3. Første pinsedag : Sunday, 8 June, 2003