Определить период

...

How many working days in year 1964?

Here is the detail of the calculation:

Because 1964 is a leap year, it has 366 days.

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

Now, let's remove 9 public holidays that do not fall during a weekend and we obtain 253 working days in 1964.

Here is the list of these 9 public holidays:

1. New Year's Day : среда, 1 январь, 1964
2. Family Day : понедельник, 17 февраль, 1964
3. Good Friday : пятница, 27 март, 1964
4. Victoria Day : понедельник, 18 май, 1964
5. Canada Day : среда, 1 июль, 1964
6. Labour Day : понедельник, 7 сентябрь, 1964
7. Thanksgiving : понедельник, 12 октябрь, 1964
8. Christmas : пятница, 25 декабрь, 1964
9. Boxing Day (observance) : понедельник, 28 декабрь, 1964

And here is the public holiday falling on a weekend:

1. Boxing Day : суббота, 26 декабрь, 1964