Define a period

...

How many working days in year 2020?

Here is the detail of the calculation:

Because 2020 is a leap year, it has 366 days.

Let's remove 52 saturdays and 52 sundays. It remains 262 days.

Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 254 working days in 2020.

Here is the list of these 8 public holidays:

1. Año Nuevo : Wednesday, 1 January, 2020
2. Día de la Constitución : Monday, 3 February, 2020
3. Natalicio de Benito Juárez : Monday, 16 March, 2020
4. Viernes Santo : Friday, 10 April, 2020
5. Día del Trabajo : Friday, 1 May, 2020
6. Día de la Independencia : Wednesday, 16 September, 2020
7. Día de la Revolución : Monday, 16 November, 2020
8. Navidad : Friday, 25 December, 2020