Define a period

...

How many working days in year 2006?

Here is the detail of the calculation:

Because 2006 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 2006.

Here is the list of these 9 public holidays:

1. Lunes de Carnaval : Monday, 27 February, 2006
2. Martes de Carnaval : Tuesday, 28 February, 2006
3. Viernes Santo : Friday, 14 April, 2006
4. Día del Trabajo : Monday, 1 May, 2006
5. Batalla de Pichincha : Friday, 26 May, 2006
6. Primer Grito de la Independencia : Friday, 11 August, 2006
7. Independencia de Guayaquil : Monday, 9 October, 2006
8. Día de los Difuntos : Friday, 3 November, 2006
9. Navidad : Monday, 25 December, 2006

And here is the public holiday falling on a weekend:

1. Año Nuevo : Sunday, 1 January, 2006