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How many working days in year 2023?
Here is the detail of the calculation:
Because 2023 is not a leap year, it has 365 days.
Let's remove 52 saturdays and 53 sundays. It remains 260 days.
Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 251 working days in 2023.
 Here is the list of these 9 public holidays: 
 
 1. Jueves Santo : Thursday, 6 April, 2023 
2. Viernes Santo : Friday, 7 April, 2023 
3. Día del Trabajo : Monday, 1 May, 2023 
4. Día del Ejército : Monday, 3 July, 2023 
5. Día de la Asunción : Tuesday, 15 August, 2023 
6. Día de la Independencia : Friday, 15 September, 2023 
7. Día de la Revolución : Friday, 20 October, 2023 
8. Día de Todos los Santos : Wednesday, 1 November, 2023 
9. Navidad : Monday, 25 December, 2023 
And here are the 4 public holidays falling on a weekend:
1. Año Nuevo : Sunday, 1 January, 2023 
2. Sábado Santo : Saturday, 8 April, 2023 
3. Noche Buena : Sunday, 24 December, 2023 
4. Víspera de Año Nuevo : Sunday, 31 December, 2023