Define a period

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How many working days in year 2003?

Here is the detail of the calculation:

Because 2003 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 12 public holidays that do not fall during a weekend and we obtain 249 working days in 2003.

Here is the list of these 12 public holidays:

1. Año Nuevo : Wednesday, 1 January, 2003
2. Jueves Santo : Thursday, 17 April, 2003
3. Viernes Santo : Friday, 18 April, 2003
4. Día del Trabajo : Thursday, 1 May, 2003
5. Día de la Fuerza Aérea : Wednesday, 23 July, 2003
6. Día de la Independencia : Monday, 28 July, 2003
7. Día de la Independencia : Tuesday, 29 July, 2003
8. Batalla de Junin : Wednesday, 6 August, 2003
9. Combate de Angamos : Wednesday, 8 October, 2003
10. Día de la Inmaculada Concepción : Monday, 8 December, 2003
11. Batalla de Ayacucho : Tuesday, 9 December, 2003
12. Navidad : Thursday, 25 December, 2003

And here are the 4 public holidays falling on a weekend:

1. Batalla de Arica y Día de la Bandera : Saturday, 7 June, 2003
2. Día de San Pedro y San Pablo : Sunday, 29 June, 2003
3. Día de Santa Rosa de Lima : Saturday, 30 August, 2003
4. Día de Todos los Santos : Saturday, 1 November, 2003