Define a period

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How many working days in year 2018?

Here is the detail of the calculation:

Because 2018 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 14 public holidays that do not fall during a weekend and we obtain 247 working days in 2018.

Here is the list of these 14 public holidays:

1. Año Nuevo : Monday, 1 January, 2018
2. Lunes de Carnaval : Monday, 12 February, 2018
3. Martes de Carnaval : Tuesday, 13 February, 2018
4. Jueves Santo : Thursday, 29 March, 2018
5. Viernes Santo : Friday, 30 March, 2018
6. Día del Veterano y de los Caídos en la Guerra de Malvinas : Monday, 2 April, 2018
7. Día Internacional de los Trabajadores : Tuesday, 1 May, 2018
8. Día de la Revolución de Mayo : Friday, 25 May, 2018
9. Conmemoración de la muerte del General Manuel Belgrano : Wednesday, 20 June, 2018
10. Día de la Independencia : Monday, 9 July, 2018
11. Día del Paso a la Inmortalidad del General José de San Martín : Monday, 20 August, 2018
12. Día del Respeto a la Diversidad Cultural : Monday, 15 October, 2018
13. Día de la Soberanía Nacional : Monday, 19 November, 2018
14. Navidad : Tuesday, 25 December, 2018

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

1. Día Nacional de la Memoria por la Verdad y la Justicia : Saturday, 24 March, 2018
2. Día del Paso a la Inmortalidad del General Martín Miguel de Güemes : Sunday, 17 June, 2018
3. Día de la Inmaculada Concepción : Saturday, 8 December, 2018