Define a period

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How many working days in year 1966?

Here is the detail of the calculation:

Because 1966 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 11 public holidays that do not fall during a weekend and we obtain 250 working days in 1966.

Here is the list of these 11 public holidays:

1. Lunes de Carnaval : Monday, 21 February, 1966
2. Martes de Carnaval : Tuesday, 22 February, 1966
3. Día Nacional de la Memoria por la Verdad y la Justicia : Thursday, 24 March, 1966
4. Jueves Santo : Thursday, 7 April, 1966
5. Viernes Santo : Friday, 8 April, 1966
6. Día de la Revolución de Mayo : Wednesday, 25 May, 1966
7. Conmemoración de la muerte del General Manuel Belgrano : Monday, 20 June, 1966
8. Día del Paso a la Inmortalidad del General José de San Martín : Monday, 15 August, 1966
9. Día del Respeto a la Diversidad Cultural : Monday, 10 October, 1966
10. Día de la Soberanía Nacional : Monday, 21 November, 1966
11. Día de la Inmaculada Concepción : Thursday, 8 December, 1966

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

1. Año Nuevo : Saturday, 1 January, 1966
2. Día del Veterano y de los Caídos en la Guerra de Malvinas : Saturday, 2 April, 1966
3. Día Internacional de los Trabajadores : Sunday, 1 May, 1966
4. Día de la Independencia : Saturday, 9 July, 1966
5. Navidad : Sunday, 25 December, 1966