Определить период

...

How many working days in year 1940?

Here is the detail of the calculation:

Because 1940 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 1940.

Here is the list of these 9 public holidays:

1. New Year's Day : понедельник, 1 январь, 1940
2. Maundy Thursday : четверг, 21 март, 1940
3. Good Friday : пятница, 22 март, 1940
4. Easter Monday : понедельник, 25 март, 1940
5. General Prayer Day : пятница, 19 апрель, 1940
6. Ascension Day : четверг, 2 май, 1940
7. Whit Monday : понедельник, 13 май, 1940
8. Christmas Day : среда, 25 декабрь, 1940
9. Boxing Day : четверг, 26 декабрь, 1940

And here are the 2 public holidays falling on a weekend:

1. Easter Sunday : воскресенье, 24 март, 1940
2. Pentecost : воскресенье, 12 май, 1940