Define a period

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How many working days in year 1956?

Here is the detail of the calculation:

Because 1956 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 1956.

Here is the list of these 8 public holidays:

1. Ouschterméindeg : Monday, 2 April, 1956
2. Dag vun der Aarbecht : Tuesday, 1 May, 1956
3. Christi Himmelfaart : Thursday, 10 May, 1956
4. Péngschtméindeg : Monday, 21 May, 1956
5. Léiffrawëschdag : Wednesday, 15 August, 1956
6. Allerhellegen : Thursday, 1 November, 1956
7. Chrëschtdag : Tuesday, 25 December, 1956
8. Stiefesdag : Wednesday, 26 December, 1956

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

1. Neijoerschdag : Sunday, 1 January, 1956
2. Nationalfeierdag : Saturday, 23 June, 1956