Define a period

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How many working days in year 2097?

Here is the detail of the calculation:

Because 2097 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 245 public holidays that do not fall during a weekend and we obtain 245 working days in 2097.

Here is the list of these 245 public holidays:

1. Año Nuevo : Tuesday, 1 January, 2097
2. Día de los Reyes Magos : Monday, 7 January, 2097
3. Día de San José : Monday, 25 March, 2097
4. Jueves Santo : Thursday, 28 March, 2097
5. Viernes Santo : Friday, 29 March, 2097
6. Primero de Mayo : Wednesday, 1 May, 2097
7. La Ascensión del Señor : Monday, 13 May, 2097
8. Corpus Christi : Monday, 3 June, 2097
9. El Sagrado Corazón de Jesús : Monday, 10 June, 2097
10. San Pedro y San Pablo : Monday, 1 July, 2097
11. Batalla de Boyaca : Wednesday, 7 August, 2097
12. La Asunción de la Virgen : Monday, 19 August, 2097
13. Día de la Raza : Monday, 14 October, 2097
14. Día de Todos los Santos : Monday, 4 November, 2097
15. Independencia de Cartagena : Monday, 11 November, 2097
16. Navidad : Wednesday, 25 December, 2097

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

1. Domingo de Pascua : Sunday, 31 March, 2097
2. Grito de Independencia : Saturday, 20 July, 2097
3. Día de la Inmaculada Concepción : Sunday, 8 December, 2097