Define a period

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How many working days in year 1972?

Here is the detail of the calculation:

Because 1972 is a leap year, it has 366 days.

Let's remove 53 saturdays and 53 sundays. It remains 260 days.

Now, let's remove 10 public holidays that do not fall during a weekend and we obtain 250 working days in 1972.

Here is the list of these 10 public holidays:

1. Prešernov dan : Tuesday, 8 February, 1972
2. Velikonočni ponedeljek : Monday, 3 April, 1972
3. Dan upora proti okupatorju : Thursday, 27 April, 1972
4. Praznik dela : Monday, 1 May, 1972
5. Praznik dela : Tuesday, 2 May, 1972
6. Marijino vnebovzetje : Tuesday, 15 August, 1972
7. Dan reformacije : Tuesday, 31 October, 1972
8. Dan spomina na mrtve : Wednesday, 1 November, 1972
9. Božič : Monday, 25 December, 1972
10. Dan samostojnosti in enotnosti : Tuesday, 26 December, 1972

And here are the 5 public holidays falling on a weekend:

1. Novo leto : Saturday, 1 January, 1972
2. Novoletni dan : Sunday, 2 January, 1972
3. Velika noč : Sunday, 2 April, 1972
4. Binkošti : Sunday, 21 May, 1972
5. Dan državnosti : Sunday, 25 June, 1972