Define a period

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How many working days in year 1976?

Here is the detail of the calculation:

Because 1976 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 13 public holidays that do not fall during a weekend and we obtain 249 working days in 1976.

Here is the list of these 13 public holidays:

1. Año Nuevo : Thursday, 1 January, 1976
2. Lunes de Carnaval : Monday, 1 March, 1976
3. Martes de Carnaval : Tuesday, 2 March, 1976
4. Jueves Santo : Thursday, 15 April, 1976
5. Viernes Santo : Friday, 16 April, 1976
6. Declaración de la Independencia : Monday, 19 April, 1976
7. Celebración de la constitución de un primer gobierno dentro del proceso de independencia nacional iniciado en la Revolución de Mayo. : Tuesday, 25 May, 1976
8. Batalla de Carabobo : Thursday, 24 June, 1976
9. Día de San Pedro y San Pablo : Tuesday, 29 June, 1976
10. Conmemora de la Declaración de independencia nacional de Venezuela (5 de julio de 1811) : Monday, 5 July, 1976
11. Día de la Resistencia Indígena : Tuesday, 12 October, 1976
12. Nochebuena : Friday, 24 December, 1976
13. Nochevieja : Friday, 31 December, 1976

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

1. Día Internacional de los Trabajadores : Saturday, 1 May, 1976
2. Natalicio del libertador Simón Bolívar : Saturday, 24 July, 1976
3. Navidad : Saturday, 25 December, 1976