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How many working days in year 1929?
Here is the detail of the calculation:
Because 1929 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 13 public holidays that do not fall during a weekend and we obtain 248 working days in 1929.
 Here is the list of these 13 public holidays: 
 
 1. Año Nuevo : Tuesday, 1 January, 1929 
2. Lunes de Carnaval : Monday, 11 February, 1929 
3. Martes de Carnaval : Tuesday, 12 February, 1929 
4. Jueves Santo : Thursday, 28 March, 1929 
5. Viernes Santo : Friday, 29 March, 1929 
6. Día del Veterano y de los Caídos en la Guerra de Malvinas : Tuesday, 2 April, 1929 
7. Día Internacional de los Trabajadores : Wednesday, 1 May, 1929 
8. Conmemoración de la muerte del General Manuel Belgrano : Thursday, 20 June, 1929 
9. Día de la Independencia : Tuesday, 9 July, 1929 
10. Día del Paso a la Inmortalidad del General José de San Martín : Monday, 19 August, 1929 
11. Día del Respeto a la Diversidad Cultural : Monday, 14 October, 1929 
12. Día de la Soberanía Nacional : Monday, 18 November, 1929 
13. Navidad : Wednesday, 25 December, 1929 
And here are the 3 public holidays falling on a weekend:
1. Día Nacional de la Memoria por la Verdad y la Justicia : Sunday, 24 March, 1929 
2. Día de la Revolución de Mayo : Saturday, 25 May, 1929 
3. Día de la Inmaculada Concepción : Sunday, 8 December, 1929