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 53 saturdays and 52 sundays. It remains 260 days.

Now, let's remove 14 public holidays that do not fall during a weekend and we obtain 246 working days in 1966.

Here is the list of these 14 public holidays:

1. Día de los Reyes Magos : Monday, 10 January, 1966
2. Día de San José : Monday, 21 March, 1966
3. Jueves Santo : Thursday, 7 April, 1966
4. Viernes Santo : Friday, 8 April, 1966
5. La Ascensión del Señor : Monday, 23 May, 1966
6. Corpus Christi : Monday, 13 June, 1966
7. El Sagrado Corazón de Jesús : Monday, 20 June, 1966
8. San Pedro y San Pablo : Monday, 4 July, 1966
9. Grito de Independencia : Wednesday, 20 July, 1966
10. La Asunción de la Virgen : Monday, 15 August, 1966
11. Día de la Raza : Monday, 17 October, 1966
12. Día de Todos los Santos : Monday, 7 November, 1966
13. Independencia de Cartagena : Monday, 14 November, 1966
14. 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. Domingo de Pascua : Sunday, 10 April, 1966
3. Primero de Mayo : Sunday, 1 May, 1966
4. Batalla de Boyaca : Sunday, 7 August, 1966
5. Navidad : Sunday, 25 December, 1966