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How many working days in year 1945?

Here is the detail of the calculation:

Because 1945 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 7 public holidays that do not fall during a weekend and we obtain 254 working days in 1945.

Here is the list of these 7 public holidays:

1. Año Nuevo : понедельник, 1 январь, 1945
2. Día de la Constitución : понедельник, 5 февраль, 1945
3. Natalicio de Benito Juárez : понедельник, 19 март, 1945
4. Viernes Santo : пятница, 30 март, 1945
5. Día del Trabajo : вторник, 1 май, 1945
6. Día de la Revolución : понедельник, 19 ноябрь, 1945
7. Navidad : вторник, 25 декабрь, 1945

And here is the public holiday falling on a weekend:

1. Día de la Independencia : воскресенье, 16 сентябрь, 1945