Define a period

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How many working days in year 1992?

Here is the detail of the calculation:

Because 1992 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 1992.

Here is the list of these 13 public holidays:

1. Año Nuevo : Wednesday, 1 January, 1992
2. Jueves Santo : Thursday, 16 April, 1992
3. Viernes Santo : Friday, 17 April, 1992
4. Día del Trabajo : Friday, 1 May, 1992
5. Día de San Pedro y San Pablo : Monday, 29 June, 1992
6. Día de la Fuerza Aérea : Thursday, 23 July, 1992
7. Día de la Independencia : Tuesday, 28 July, 1992
8. Día de la Independencia : Wednesday, 29 July, 1992
9. Batalla de Junin : Thursday, 6 August, 1992
10. Combate de Angamos : Thursday, 8 October, 1992
11. Día de la Inmaculada Concepción : Tuesday, 8 December, 1992
12. Batalla de Ayacucho : Wednesday, 9 December, 1992
13. Navidad : Friday, 25 December, 1992

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

1. Batalla de Arica y Día de la Bandera : Sunday, 7 June, 1992
2. Día de Santa Rosa de Lima : Sunday, 30 August, 1992
3. Día de Todos los Santos : Sunday, 1 November, 1992