Define a period

...

How many working days in year 2016?

Here is the detail of the calculation:

Because 2016 is a leap year, it has 366 days.

Let's remove 53 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 2016.

Here is the list of these 9 public holidays:

1. Anul Nou : Friday, 1 January, 2016
2. Vinerea Mare : Friday, 29 April, 2016
3. A doua zi de Paște : Monday, 2 May, 2016
4. Ziua Copilului : Wednesday, 1 June, 2016
5. A doua zi de Rusalii : Monday, 20 June, 2016
6. Adormirea Maicii Domnului : Monday, 15 August, 2016
7. Sfântul Andrei : Wednesday, 30 November, 2016
8. Ziua Națională a României : Thursday, 1 December, 2016
9. A doua zi de Crăciun : Monday, 26 December, 2016

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

1. A doua zi după Anul Nou : Saturday, 2 January, 2016
2. Ziua Unirii Principatelor Române : Sunday, 24 January, 2016
3. Paște ortodox : Sunday, 1 May, 2016
4. Rusalii : Sunday, 19 June, 2016
5. Crăciunul : Sunday, 25 December, 2016