Определить период

...

How many working days in year 1956?

Here is the detail of the calculation:

Because 1956 is a leap year, it has 366 days.

Let's remove 52 saturdays and 53 sundays. It remains 261 days.

Now, let's remove 8 public holidays that do not fall during a weekend and we obtain 253 working days in 1956.

Here is the list of these 8 public holidays:

1. New Year's Day : понедельник, 2 январь, 1956
2. Good Friday : пятница, 30 март, 1956
3. Easter Monday : понедельник, 2 апрель, 1956
4. Labour Day : вторник, 1 май, 1956
5. Establishment Day : понедельник, 2 июль, 1956
6. National Day : понедельник, 1 октябрь, 1956
7. Christmas Day : вторник, 25 декабрь, 1956
8. Boxing Day : среда, 26 декабрь, 1956

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

1. New Year's Day : воскресенье, 1 январь, 1956
2. Holy Saturday : суббота, 31 март, 1956
3. Establishment Day : воскресенье, 1 июль, 1956