Define a period

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How many working days in year 1992?

Here is the detail of the calculation:

Because 1992 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 11 public holidays that do not fall during a weekend and we obtain 251 working days in 1992.

Here is the list of these 11 public holidays:

1. Anul Nou : Wednesday, 1 January, 1992
2. A doua zi după Anul Nou : Thursday, 2 January, 1992
3. Ziua Unirii Principatelor Române : Friday, 24 January, 1992
4. Vinerea Mare : Friday, 24 April, 1992
5. A doua zi de Paște : Monday, 27 April, 1992
6. Ziua Muncii : Friday, 1 May, 1992
7. Ziua Copilului : Monday, 1 June, 1992
8. A doua zi de Rusalii : Monday, 15 June, 1992
9. Sfântul Andrei : Monday, 30 November, 1992
10. Ziua Națională a României : Tuesday, 1 December, 1992
11. Crăciunul : Friday, 25 December, 1992

And here are the 4 public holidays falling on a weekend:

1. Paște ortodox : Sunday, 26 April, 1992
2. Rusalii : Sunday, 14 June, 1992
3. Adormirea Maicii Domnului : Saturday, 15 August, 1992
4. A doua zi de Crăciun : Saturday, 26 December, 1992